my answer's here.......
Are they 4WD or AWD? 3wd....no front lsd

If they break are they a cheap quick fix? not really, good compared to some things (evo's, skylines ETC) but they do suffer from cosworth tax, as said

Are they going up in price? if so i better find one quick. they seem to be, always good!

Whats all this i hear about de-locking? Good idea? meh, not bad, gay if the battery goes flat
Can the engines be rebuild easy so its like a fresh engine? depends how good you are, they are the same as any engine in terms of rebuild, and obviously, modifying = big money

Do they drink ALOT? As in 15 MPG. Depends on state of tune, bog standard one will be quite good, 500 bhp monster, awful.

Can you get this on a classic insurance? yes, but dont bother, its about £1k dearer for me to do that.