Same track, all the attachments will fit either one. Both PacBay and the Alps unit offer an upgraded chuck and that is where the difference is. Hard to beat the Alps. If cost is an issue, just get the base PacBay and upgrade when you feel you need to. Problems with a blank popping out of the stands can be fixed easily, Woodburner had a neat trick for modiyfing them. His post should still be available. Most suppliers will be about the same price, it's the shipping that gets ya'.