My hobby saw is a Festool TS 55, same as many professionals around the world. 
But, I don't have any need for a worm drive saw, and neither do many professionals around the world. Just playing devil's advocate. 
Worm drive saws are pretty cool though. If I do cement board panels for our house siding (not fiber cement, very different product), I'm getting a worm drive saw because it's the only thing powerful enough to cut it with any sort of decent feed rate.
