Just had a look on Discogs at the NWW "Paranoia In Hi-Fi" CD and it is selling for a fiver! Not exactly breaking the bank there is it?
I think the sampler idea is a good one as it will attract Sleaford Mods "fans" and tune them in to the likes of Mark Durgan, Phil Julian, Circuit Breaker etc ... sounds they wouldn't necessarily come across (unless they go to SM gig?).