[wheels]

Erm, sure? Cast iron takes a little while longer to heat up because it's heavier, but it retains heat well once hot. It's even better on induction. I cook mostly in cast-iron and carbon steel and haven't ever had a gas stove. (Like a lot of kitchen wonks, I keep a cheap non-stick pan around for eggs and pancakes, and basically nothing else.)

[euroderf]

Induction might be the key here. It really is fast to change.