@airhead @dbr I bought a sheet of Richlite to replace a section in my kitchen - I love the stuff, but as you say it is very expensive. Came to about 400 quid for a 12mm 8x4 sheet once VAT and delivery came into account. It's also really, REALLY heavy.
But if you compare it to other materials you use for surfaces such as granite or corian, then suddenly it makes sense. I've still got a large section I'm looking for ideas for.
(there are alternatives to richlite which may be cheaper - paperstone's the same thing, I think, and there's something from Switzerland whose name escapes me which sounded very similar)