I was at SDCC this year and I was amazed at how many booths had Funko pops, which was about 20-30% of the booths and there was a line for the Funko area, jam packed with people. I over heard people saying they found some rare ones or newly released that were hard to find.
A few years ago someone bought me a Squirtle Funko Pop, since Squirtle is the best, and I opened it and took it out of the box. They proceeded to freak out that I ruined is value by taking it out of the box...
No what I meant was the demand for Funko pops seems to be in decline and a lot of people share OP's beanie baby perspective.
I mentioned people not wanting then for various reasons just because they weren't really involved with the hype to begin with and it could be for any number of reasons.
I think bobble heads can be kind of neat especially for niche communities but the pure volume of them combined with the artificial scarcity is off putting.
I'm also not a fan of their appearance but I think that's a separate more subjective issue.