Re: Gas or Electric?
My parents bought a pair of Bionix electric bikes and they work really well. I think that they pretty much got the top of the line kit and they better be for $1800 each in addition to the bike! They sense how hard you're pedaling and then give you a boost in relation to how hard you're pedaling with different levels of assist. I rode one for 30 miles in a really hilly area (downtown Seattle) and still had a bit of charge leftover. They have regenerative braking that charges the battery as you go downhill to extend the range and there is a throttle if you don't feel like pedaling.
I've heard a lot of bad thinks about some of the cheap Walmart type electric bikes, the batteries don't seem to last is the main complaint.