The main difference I see when looking at an sp's profile is Islands Finest and other Victoria agencies is that the sp can choose what age they are and at Boa they have to show id and post their real age. Most Victoria sps who visit boa from Victoria are about 4 years older than their Victoria profile. I prefer sps in their 30's+ so I am glad that the older Victoria sp's tend to visit boa eventually. Yay!
Also IF has charges for extras that some at Boa don't or charge less when they visit Boa. Victoria costs more for housing etc so the people there probably are more well off and can afford a few hun extra. They charge what the market will bear and that is their right.
When someone charges extra for kissing I found they were not really into kissing. Those who don't charge extra for kissing seem more into it. ymmv.
Victoria and IF agencies tend to have more young slim sps. But when they get a few years older, some gain some lovely weight, which I love. Then they visit Boa. PS I live half way between the two agencies.