My rule: I do outcalls only (bad experiences, but every rule has an exception (but I haven't found one yet)).
Pros to Incall (in addition to the ones you mentioned):
~Control your environment
~Harder for LE to get in w/o warrant
~Safety
Cons:
~Cost (rent/mortgage + upkeep); hard to keep costs static
~Obvious traffic to the front door (nosy neighbors; need for business license and zoning?)
~Cabin fever. [One lady I did an outcall with did mostly incalls. She said it was a relief to get out of her place.]
~Too much invested to do much traveling.
In the end it is your call. My advice: you gotta go with what makes you feel most comfortable. Whether that is a permanent place, hotel incalls, or all outcalls, or a combination of all of them, I don't think it really matters that much. This can be seen by the variety of offers by ladies who advertise. Some ladies do outcall/incall w/ no price differential. Some do incall for more money, while others do outcall for more money. Some ladies don't offer outcalls at all, while others don't offer incalls.
And I don't think you can determine trends by whether or not the lady is a HDH or not, or by price involved. I think, the bottom line is that each lady must set up her business in a way that is most comfortable to her and gives her the best returns.
I think in addition to a pro/cons list, you need a "gut" index. In other words, what seems best to you in your "gut."
Good Luck!!!