Fuel cell lifespan isn't too great for even industrial applications AFAIK, and $3,000 buys a lot of battery. Hell, $1500 will get a ~46lb pack of LiFePO4s (and couple 36V scooter motors/controllers) that should last ~3,000 complete cycles down to 70% capacity if treated properly. That's what, ~350,000+ miles per pack? Odds are the owner won't ride that much, so they'll probably age out before that, but we're still talking decades of useful life w/ range decreasing ~1-2% per year.