I know a lot of tournaments don’t use TLAs because some organizers don’t believe the expense of a TLA is worth the possible increase in the turnout.
To help promote the idea of more tournaments using TLAs, maybe the office would consider offering a small discount on the rating fee ($5?) for tournaments which use TLAs and which submit rating reports online? Each TLA currently has a unique TLA ID number. If this number were input during the rating report submission (and if the number correctly belonged to the organizer’s batch of TLAs) then a deduction could be made to the rating fee.
Those organizers who don’t want to use TLAs (maybe they don’t have their tournament or site details locked in yet) still wouldn’t have to. But this might help induce some organizers to start (or resume) using TLAs. I think the players benefit if tournaments have TLAs, as there are some players who might not know about the tournament otherwise (visitors, returning members, new arrivals, etc.). The tournaments would also benefit, because larger turnouts should make the tournaments more attractive, in terms of larger prizes and a larger variety of opposition for the players.
The USCF would also benefit, if the TLAs were priced correctly, not only because the increase in TLA revenue should eventuallly more than offset the rating fee discounts, but also because if there were more and more tournaments in Chess Life, then more and more players would look to Chess Life for tournaments to play in, and the value of the membership would increase. A prospective new member would probably be more eager to join if he or she were to see a typical magazine loaded with tournaments to play in.