@Shachar_Weis the DRV8825 can pump out more amperage before needing to be cooled down; so they typically run without having to add heatsinks. I probably wouldn’t spend the money to upgrade, but if I were building a new printer, I’d probably select those over the A4988s.
+1 for reprapdiscount, I have no association with them except for buying and using their stuff but so far it’s been good quality, and they’re easy to deal with. Look for BubbleRep on the reprap channel on IRC.
Well, ended up ordering the SainSmart combo from their site for $79 free shipping, 4988’s