I actually learned to water ski on the Salton Sea, back in the late 60s. Much different place then than now. That said, however, no one lives there that doesn't want to live there, and no one lives there without access to clean drinking water (no one is getting their water from the sea). There IS perfectly functional water, sewer, electric, gas infrastructure.
It IS a major stopover for migratory birds, although I suppose they would find somewhere else to do so if the sea dried up completely. I live in the San Gorgonio Pass, and we get the stink from the sea 2-3 times per year, when the conditions are just right/ripe. It'd be nice if it were to somehow be able to be restored to it's former recreational glory, but I see no way to stop the inflow from the ridiculously polluted New River flowing north from Mexico. In any case, any solution would cost way too much money, so...it'll never happen.
The 1000's of rigs that ArchHoagland saw on the I-10 were not going/coming to/from the Salton Sea; they were going/coming to/from Ocotillo Wells, Borrego, and Glamis with their off-road toys and to/from the Colorado River with their boats and PWCs. No one "recreates" at the Sea anymore.