I get very little extra enjoyment out of bookings that go on longer than 30/45 minutes, and there are a great deal of escorts whose rates reflect certain criteria whom I would like to see. There are also escorts above those rates that I'd like to see but no more so; this is why many punters, including me, have limits on distance and price. Breaking these every so often has been enjoyable but if anything has affirmed my faith in them being good rules to have. I also think I'm not alone in saying that if the region's escorts were charging 'top class' London prices then it would become a lot less about punting and only sticking to very well-reviewed SPs.
I can't speak for everyone, but I feel with the way this region's prices are is ideal. There is plenty of choice in many price brackets, and with that also a fair bit of variety. Some niches are not so well represented(a pale-skinned, size 6, A-cup girl covered in tattoos would be nice) but for the most part I think I could book almost anyone on my long list of people to see and I wouldn't feel hard done by for losing half an hour or the money it cost. That being said if it came to the point where we were paying London-esque prices I think with the amount I punt at the moment I wouldn't necessarily slow down or stop, but I would probably either do what I've just mentioned and make sure anyone I booked had a short novel's worth in positive reviews or do something I've been trying to avoid doing for a while now and find a regular.
For what it's worth, I don't think I'd ever pay £750 for a punt. I would be willing to pay more than I am at the moment for something that ticked all my boxes but the odds of someone working in the area that would be like that is incredibly unlikely.