We have no mains gas, but our hob is LPG. We thought about changing to induction for many of the reasons already stated - plus the fact that they look darn good. The only reason that we probably won't is the faff with having to add extra wiring, as our hob is on the opposite side of the room to our cooker. We would have had to get quite a few new pans as well and the induction hobs themselves are a couple of hundred more than a nice stainless gas one to start with. Still not decided 100% though.