Half a Bill

Ok guys, i'm gonna say it and i may get in trouble for this but i have to ask, why does half a bill make such a big difference? If i see a provider advertise for 300, i hardly look twice, 250 i think long and hard about it especially if the reviews are great and she makes my eyes jump out. 200 if the reviews are so-so.......i'm looking to take the plunge and just chalk it up to ymmv. I know i can't bee the only one that looks at it from this point of view. I've had some FANTASTIC times with 200 providers oh my and some pretty hot times with 250 providers. I have yet to dive into the 300 provider range in this area. I did in Austin a year or two ago but she was Asian so that doesn't count lol