Fuel Cell Limitations?

Question

What are the limitations of Fuel Cells? Specifically i'm looking for the cost and availibility of them.

Answer 1

Fuel cells cost too much to compete well with internal combustion engines as yet.  This limits the availability = it is not hard to find a car, motor cycle, or lawn mower engine because they are cheap to make, but fuel cells are expensive to make so few are made.  The sites give more specific details.

Another major limitation is that it is hard to find commercial sources of hydrogen to fuel them.