Wow, I just saw an ad from a visiting provider that is staying for "TEN DAYS".
Why are so many only here for one to three days, and if you're here from "the 11th - 13th", does that mean "the night of the 11th and the morning of the 13th"? That's more like a day and a half. And why all the late notices? I don't know how often the other guys hobby, but if you're a once a month'er, or like me, once a quarter (if I'm lucky), it's nice to have lots of notice to see your favorites.I echo Ishootcraps on the late notice issue. Too often I see a notice posted on the first day of a short visit by someone I would love to see, but I just can't change gears that quickly, or I have already booked a session, and I won't cancel just to see someone else (that stuff will catch up with you). And often it's by ladies who want you to pre-book, go figure.
As to the short visits, isn't that obvious? There are only so many swains in town and 48 hours is probably the average visit.
My guess, is providers who book for longer periods may be associated with certain foreign based agencies, and they probably aren't in this area for ten days, perhaps cycling between here, NNJ, NYC and DC. Just a guess.
And when it states to a certain date, that usually means check out time. Unless someone books multiple hours after check out time.
And I come just for the day because I am only available 2-3 days a week, SOMETIMES 4. For me I like my regular 9-5 hours. It gives me time to come in, see a few friends, have a nice time and then I have the other time off the clock to do my other stuff. I have a personal life, I work out a lot and I just prefer to stay lower volume per week.
I used to be available all day, night, and weekends. Now my nights are off as well as my weekends. It works perfectly for me. For example I am coming to Valley Forge area December 15 and I have availability from 1PM-5PM. That's plenty of Time to see one or two more friends, I already have one that day. I care about having fun, and not burning out. 
As an experienced traveler, I can answer some of the (very good) questions asked.
Let's say you post 3 days--Dec 7-9.
Check in is at 3pm, and one can usually get a bit of an early check in, so the earliest I would schedule that day would be 2pm. Check out is at noon. That's pretty much set in stone.
So the 9th would be mornings only.
A lot of touring ladies prefer to pop into a city/location, see several guys a day then leave.
We can def be a spontaneous bunch, but those who keep databases will send an email blast letting people who have previously contacted them via ads know their exact dates, which gives their database a first chance at securing time.
Traveling is hella expensive. Believe me, my accountant just read me the riot act on my hotel costs-- between ads, travel costs, hotels and eating and drinking out, it ads up quickly.
Philly is easy to satellite, so you are right in that ladies are moving around to close areas. there are many markets withing 1.5 hours-incl,. NYC and DC/Balto, but smaller, very good markets too, such as Princeton, Morristown, Asbury park...
Hope this helped clear the confusion a little bit!
Play safe
xoClair
Usually when I travel somewhere when I post the 11th it means when I can check in that day- sometimes it's the AM sometimes it's the afternoon. I personally plan my visits around my meetings- but when there aren't enough pre-booked meetings it leaves us ladies between a rock and a hard spot.
I've had tours where I've blown my goal out of the water- and I have had tours where I sunk worse than the titantic and had to recover for much longer than I should. We only have so much money to spend on advertising, hotels, travel, daycare, outfits, parking, food etc.
Many of us ladies offer the newsletter features- so if you do sign up for the newsletter hopefully you will find out better.
Great topic for all the local and traveling ladies and gents!!
I definitely would say if I stay somewhere for 10 days it's probably because I got a great deal or a upscale apartment for less money, which usually doesn't happen. Like someone said on this topic. I base my tours around pre book appointments which generally works out for a 3 day stay.