There is a finite amount of money to grift and small donor campaign contributions have been consumed by the previous four years of other gifts

Plus, look at what Trump himself is doing. He's not directing every cent to the campaign, he's coming out with new *personal* grifts - the watch, the bibles, the NFTs, etc. To the extent there is more money, he's directing his fans to send it to him, not the campaign.

8 years of grifts. He's been wringing that sponge dry since 2015, really

Unfortunately, that in turn could make small-dollar donations less useful as a enthusiasm signal, because the people who would donate money if they could, but currently don't have it

Plus most of what he’s grifting is going straight into his pockets now

Yeah, the whole RW ecosystem is incredibly full of grifts. And it dates back to AM talk radio commercials in the 90s to 00s. I keep thinking they'll run out of room, but they seem to manage. Or they just rotate out.