You may want to consider having a look at the Ponsness Warren single stage presses, they are the model 375, you can often pick them up used fairly reasonably, and if the price is right it doesn't have to be in 28 gauge, as conversions are available.
If you only want to ever load one gauge, the MEC is cheaper, but if you want to load a couple, the PW is slick to change, and the tool sets are very reasonable.
I find the PW's to be much more pleasant to operate, and just feel better then the MEC's, they also seem to load a bit faster. That said, the quality of the ammo you make will be excellent off either machine if you do your part.
The other advice you received on this thread from cat and claybuster is also right on the money.
Edit:
I just wanted to add it's neat to find someone asking these questions who has actually read a manual first to get some idea of where they are headed. Kudo's for doing that.