I use it. I wanted enduring breath available, but had other priorities for buying things in the bazaar, so I turned in a ton of Abysmal Sea fish for tribute points and ended up with 3000 points.
I accidentally bought a high-value item none of my characters could use. After crying for awhile, then failing to resell it, I decided to tribute it and got an absolute ton of points.
My warrior uses the AC buff and the regeneration currently. It helps - its nothing gigantic but it is helpful.
Tribute still requires using the tribute master, where you change your benefit loadout. So if you want enduring breath, I have to go to the tribute master to change that. You only use points when it is turned on, which can be done anywhere now.
My character weblog/journal