Jamie only ever pressed up 700 copies of Heard It All Before (HIAB).
Most were sold whilst he was at college.
Occasionally original ones come up for sale, and usually go for £600 or so on Ebay.
The chances of finding a mint copy, esp. shrink wrapped are rare, hence the high price for a guaranteed original.
Pirate copies are floating about on the internet. Obviously we do not condone pirating any material. If you see a copy for sale for less than £500, chances are its a pirate copy. Mind you, there's no guarantee really that the £500 ones are genuine!
As for CD's of TV/radio performances, it is hoped that all previously broadcast material will be available to stream from Jamie's website in the members area. We are slowly getting there.
As previously mentioned, patience is a virtue. HIAB will be available someday.