I think the answer to this is quite simple,theese girls probably prefer half hour appointments
so skew their prices to reflect that.Remember not everyone wants to hear us waffling on for
an hour
With most hour appointments it wont be non stop action so there will be a need
for a social interraction which some girls find easy, where some may not ,and would rather avoid
if possible. Alot of half hour appointmens are maybe sort out the buisness end shower,the
action and after that not time for much more so ure on ure way