I'm reckoning on a cost of about a grand to get at least 500 CDs made including glass mastering and some artwork. (Someone please shout if this old fogey is way out here - but I'm fairly sure that's what it was about 10years ago). So you'd have to see 100 just to break even. Then about another 50 to cover the 400quid you'd make from the record company.
Surely there must be enough of an Electronica scene here in the UK to support that!
Veni, Vidi, Aesculi
(I came, I saw, I conkered)