My third reason is this:
Catalytic stoves are often more durable because:
Catalytic stoves burn very cleanly and efficiently at low to medium heat outputs, as noted in an earlier posting. The thermal stress of burning particulates is concentrated in the catalytic combustor, which is a durable high temperature, honeycomb patterned ceramic, made to withstand normal temperatures up to 1700 degrees. Focusing all of the high temperature activity in the catalytic combustor allows other stove components to stay in comfortable operating temperatures and not get overheated.