As for pricing, higher the price will not guarantee better quality
Some of the reasons I've seen for high pricing
Premium quality streams
(FHD 50-60fps can be had on cheap subs too though)
We stay under the radar so the service is secure
(OK but here you are touting your business to me, a complete stranger)
We only sell through personal recommendations
(OK, I was personally recommended by someone from the Internet who doesn't know me from Adam)
I own the server
(I don't really care who owns the server as long as it works. And even if you do own the server, you're probably buying the same streams as everyone else anyway)
A better level of support
(If your sub's worth the extra, surely everyone should need less support)