I think they look fun, but I wouldn't have thought any of them will withstand jumps, none of the ones I've seen will, although you can get mini scrambler ones.
If you want to do jumps on a motorbike, bset to get a small crosser or similar, much stronger, and probably faster.
Best ones to get IMO are the superbike replica ones, you can pick them up cheap on ebay (£100-200), and they are often upgradable with new filters, sprockets, leads, etc. Even nitrous kits. hey look like great fun in an empty car park or similar if there is one near you, especially if a couple of you get them.