The Dillon 650 is a good press for high volume reloading, but not necessarily a great first press. As with most progressives, there's a whole load of stuff happening at the same time, and none of what's happening can be skipped, as far as your attention goes. Additionally, progressive presses by their nature provide you with very little feedback about what's happening - you can't feel a high primer, can't properly see an uncharged, or partially charged case. I know Dillon makes a powder check die but things can happen that will fool that too. If you have no experience in reloading at all, a high speed progressive is a very frustrating and unforgiving classroom. Spend a few dollars on the cheapest single stage you can find and use it to learn the basics - it's cheap insurance when screwing up can cost you a hand or an eye. You'll still use the dies on your Dillon, and a scale will still be needed, so you won't be out more than $50-75 for the press and a either a basic measure, or a set of dippers.
The Dillon 650 is a good press for high volume reloading, but not necessarily a great first press. As with most progressives, there's a whole load of stuff happening at the same time, and none of what's happening can be skipped, as far as your attention goes. Additionally, progressive presses by their nature provide you with very little feedback about what's happening - you can't feel a high primer, can't properly see an uncharged, or partially charged case. I know Dillon makes a powder check die but things can happen that will fool that too. If you have no experience in reloading at all, a high speed progressive is a very frustrating and unforgiving classroom. Spend a few dollars on the cheapest single stage you can find and use it to learn the basics - it's cheap insurance when screwing up can cost you a hand or an eye. You'll still use the dies on your Dillon, and a scale will still be needed, so you won't be out more than $50-75 for the press and a either a basic measure, or a set of dippers.
^^^^ Excellent post! 
Thanks for all the suggestions.
I am looking to reload for a pistol. I do understand that reloading is not something to be taken lightly, but I would rather buy the press I will eventually end up with anyway instead of going through 2-3 other presses before settling on the one I originally was interested in.
As oneskilledshooter said, I can still go through the all steps with a progressive as apposed to a single stage press.
This being said, lets go back to the original question. Where can I get a Dillon XL650 for the best price?

When you later decide to purchase a single stage to mount along side the 650, you'll find it very handy for such uses as:
1) Decapping (If you want to)
2) Using your Lee bulge buster die (If you shoot 40 S&W)
3) Stuck case removal (RCBS kit or equivalent) inevitable !
4) Using RCBS (non-slamf*ck) bullet puller
5) Various swaging operations (maybe ??)
6) Troubleshooting a die issue.
7) Any other small operation not worth disturbing your 650 setup for.
You needn't drop 00's for an RCBS press. You can pick up a SmartLoader "C" press from MidSouth Shooters Supply for $18.00 ! Their "O" press is a whopping $32.00. These would do.
As to my dead horse, I'm not critiquing your choice, its great! A SS press isn't absolutely necessary to your learning the game. I don't agree though, that a SS press is a wasted step for those whose ultimate goal is to crank out zillions of pistol rounds on a progressive. Thats a popular albeit flawed conclusion among new Reloaders,, just so you know
.
There are, in the main, 2 types of Reloader; those who own a SS press and those who will. You don't see the EE forum festooned with WTS adds posted by reloaders selling SS presses because they just bought a progressive,, and you never will. They use em.
You can still go really slowly and put one case through at a time. What I mean is load 1 case and put it through all stages that way you can keep an eye on everything. Then speed things up a little at a time. Put a reading light or flashlight next to the powder station and have a look at it as cases come through. Use a high volume powder so you can tell if it's not charged or double charged.
I think that if someone is going to make a serious mistake they can do it on any type of press. You certainly can use that 650 to walk before you run. You do have to be very conscientious but it isn't exactly splitting atoms.
I am also assuming you are looking at reloading for pistols.



























