I guess until the sex shop only supply issue can be tackled, prices will stay high. Like it or not, if I've got ?25 to spend I'll more than likely buy 5 top Hollywood films from HMV and not a single DVD from the local porn shop. Assuming you can get the title you want that cheaply.
I don't want to piss on people who are making this stuff and, in many cases, struggling to make a living at it, but a couple of things I'd like to see are a bit more variety in the scenes, lay off the slow-mo and if you're shooting a scene and a foot or arm gets in the way of the action at a vital moment, reshoot the cumshot. If possible

An example - I saw Cathula recently, a film I'd looked forward to seeing because it was trying to do something outside the usual handycam gonzo routine. I enjoyed it (why doesn't Jane Whitehouse do more b/g?) but there was one cumshot where the guy's arm was in the way. Would it have been impossible to retake that from a different angle and edit the scene? The camerman was aware of the problem as he shifted position...
That's being picky I suppose, but little things like that detract from the rest of the film a bit for me.
Brit porn isn't perfect, but neither is any other. We've got the performers to make high class porn and the producers willing to put product on the shelf, but all it needs is a little bit more attention with the direction, in my opinion.
Easy for me to say as a punter though.