Why No Consecutive Fights in UFC?

Curious why the UFC has its fighters participate in AT MOST, every other show, and sometimes even less. Pride doesn't do this nor did the UFC in the old days. Seems it hurts the marketability of the fighters. For example, Chuck had a very short fight with Randy and should be headlining the next UFC. Is it the money?

Some guys fight two shows in a row.Tito, Hughes, Frank Shamrock, Couture...notice how all of these guys are the biggest champions in UFC history.

the nevada athletic commission suspends lotsa fighters medicly for injuries

There is also a suspention time period for fighters that get knocked out in the octogon, So those that get put to sleep will spend a good 6 or so months sitting on the sidelines watching his fellow fighting brotheren, while docs. make sure there is no, or if there is, then his head injuries take the right amount of time needed to heal and have no brain damage.

~Cagefighter

"Some guys fight two shows in a row.Tito, Hughes, Frank Shamrock, Couture...notice how all of these guys are the biggest champions in UFC history."

Not really:

Hughes fought in 36,38,40,42,44,45,46,48,50,52 (only one back to back)

Randy only had one as well: UFC 35,39,43,44,46,49,52

See the pattern? Even Tito only had two consecutive UFC's when he was champ. With the event happening only once every three months, the champs could defend on every show.

"the nevada athletic commission suspends lotsa fighters medicly for injuries"

True, but I really had the champs in mind here so this wouldn't apply to them. I see no reason the champs couldn't defend every three months unless they weren't 100% healthy because they were still recovering from a 5 round war or something.

The other thing is that there are only so many slots that the UFC can offer to keep fighters active. Assuming they have 9 fights per event thats 18 fighters that will be active on any given night. If the champs from each weight class fought in each show the you're down to 14 open slots. They need to keep the rotation going simply for the sake of getting more fighters the exposure they need to keep people interested in those shows that aren't filled to the gills with top name guys.