Fascinating question
1. I spend around $1000/month on FS and R&T, give or take a few hundred. This is all I can afford, without compromising other priorities.
2. Sometimes, when I hear of billionaire pooners with Shaughnessy mansions or big-shot execs like Dickson, I feel twinges of envy. But that's a futile emotion. So I just get on with things and feel grateful for what I have.
3. I've seen half a dozen SPs charging $250/hr (or more) in the past. I believe anyone should charge whatever their market value can bear. If I were an SP, that's clearly what I'd do. It's just that, personally, I find paying more than $200 too painful to make it worthwhile. (Having said that, I've just done a 4-some allowing me to dip into 2 girls and Greeking one of them, for which I forked out a total of $210).
4. For $150/session (I assume you mean sessions close to an hour rather than a 15 min blow-and-go), I think your choices in the GVRD are pretty much limited either to Asian girls or Western SPs with some serious liabilities.
Korean girls tend to start at $160 for 45 min, but many Chinese micros offer lovely ladies—usually in their late 20s to early 40s—for around $120/45 or $140/1 hr. I notice, there've been quite a few $100/45 deals lately as well.
Of course, if things go swimmingly—as they do for me far more often than not—I'd feel impossibly stingy if I didn't add a $20-$40 appreciation tip at the end.
Why don't you tell us about your pooning budget, brother?