aHa. I've got the Festool 150 and it's pricey. You're welcome to try it before you decide and maybe someone with the Bosch will make the same offer.
Joe
I haven't used it, but it looks almost exactly like the Festool Rotex 150 when I looked at it at Klingspor down to the feel and weight. I have the rotex like Joe, and it is an impressive sander to say the least. I don't think I would have any regrets buying the Bosch either.
In a recent article in one of the wood working magazine the rigid sander scored just as high as the festool and bosch and the rigid cost $169 new. I have a 5" ros from rigid and it is one of my favorite sanders.
The Bosch 1250DVES is more powerful (6.5 vs 4 amps) and has a slightly smaller pattern (3/32 vs 1/8") on the finish mode than the Rigid. CPO Bosch at the time had a rebate and cheap shipping.