I find advertising as a domme means you get a mix of extremes, both very generous, much more superficially respectful guys (although scratch some of them too deep and you'll discover their inner control freak) on the one side, and lots of wayward timewasters and fantasists on the other. But, once you've been advertising for a while you'll filter the latter out. Its also more common in domme world to ask for deposits which can reduce timewasters. I think domme work can drain your mental energy more because you have to be very emotionally present during the booking to a degree you don't necessarily have to be with escorting (like, for me, at least during the sex bit I can - to a degree - go on auto pilot but I never can with domme, I'm on it from beginning to end), especially if you are administering pain and impacts etc and every booking is very different, very eclectic so you have to be prepared for that. So yea, its less  physically invasive but can be more mentally invasive, for want of a better word.

There are pros and cons to domme work and escort work, really. But I agree I've never had escort customers be as generous as domme customers but as Amy says, to get this attention you have to be good and really please the punters because its a small pool of potential punters and they can be much more loyal to their dommes than escort clients, so building a pool of regs is harder to begin with, especially if you are inexperienced.

There can be a lot more planning, setting of limits, safety, preparation and clean up.

Yes agreed. Which can be both very rewarding and very tiring,

Maybe I'm wrong but pro-dommes usually have higher rates too. Maybe that's the reason?
I'm offering domination along with escorting and every time I had a client who wanted a complicated domination session I felt like I should charge way more as I had to put a lot more preparation into that.

For the reasons you mention, I charge about £100 more for dom ph than escort. For dom add-ons in a vanilla escort sesh I charge £30-£80 per item.