I try to buy locally first, and north of the 49th second, if the landed cost isn't too far out of line.
If we don't support the locals, they won't be there when we really need them!
But inventories being what they are, buying direct is the only way to go sometimes.
If ordering from Dillon, be sure to check out their "Ammo Boxes and Bins" section... eg - 10 x 100rd 9mm boxes for $15.20.. Loading up on plastic can offset some of the shipping charges
Be sure to get a "XL 650 Spare Parts Kit - Stock Number: 21146"
IMO, the Dillon powder checker is a better solution than the RCBS Lockout die... The RCBS causes a short cycle of the press, and thus a potential screw-up on the other stations.