Well, everything depend's on your traffic..
 

what is the volume of traffic required, without going too deep into analysis?

A niche tube with 120,000 hits monthly can stand up, IF well managed?

It could use more traffic.

thanks dude :thumbsup

It also depends on how much content you have, how often you update and the quality of the content. If only this business was just about driving traffic. LOL

Ive seen 50k/day sites that do more money then 500k/day sites.

Its all about traffic sources and quality. No 2 sites are alike.