Thought
 

Too many single girl sites these days

Positive competition leads to better products and services.. :thumbsup

Different strokes as they say..

Exactly what surfers want.. :thumbsup

lots of site to choose from..

Never enough as long as they don't flake.

Correction, to many ill conceived single girl sites these days.

what consumers demands, producers supply - the law of supply and demand

That also can work in reverse. You can end up with to much supply and not enough demand.

To much lately has been Same Old Shit Different Design. No hook, no persona, no fantasy, and no experience shared between the model and the visitor.