The ladies I assist are low volume and most charge in the 600 range. I used to work at an agency where ladies would aim to see five clients a day. The ladies I work for now are capped at 1, because of COVID--though I am aware that is a false sense of security--and also because they prefer it that way. It's not that difficult to get multi-hour appointments at higher rates and we still see a fair share of old friends. Some who asked are grandfathered, others not. The ladies don't refuse 1 hour dates, and enjoy them greatly, but those are not the norm.
I think the big difference has been a cultural shift where more people accept SW as a valid and socially acceptable career choice, so we're seeing more providers from an affluent background enter the market at a price point that they feel differentiates them from others. I do not believe that rates are reflective of a provider's "value" as a person or anything else. It's the price she feels is reasonable for an hour, and if you don't wish to pay it, there are plenty of amazing ladies available at lower prices. This is a luxury service. It's not healthcare that everybody has a right to it. (Oh wait....)
Everything costs more, so why should providers stick to 2010 rates? Believe it or not, there's an entire market out there of clients who don't post on message boards bemoaning inflation. The most generous clients I talk to occasionally read reviews and never post. I try and help out TER posters I know because I love this community and enjoy shooting the shit about old days, but us message board folks do not drive revenue.
If you were a provider, would you rather see 4 clients at 400 who would constantly be throwing around their weight as a reviewer, ask you for a variety of acronyms you don't even know, and threaten repercussions if they don't get everything on their checklist, or would you see one client for 3 hours at 600/hour?