I feel the key question is not that if they’re better, but if people are using them more and more often than plugins.
And in particular, if they’re using the ones that aren’t just a custom system prompt. Because I really doubt there’s any big business in commercializing system prompts.
My hunch right now is that GPTs have made it clear that OpenAI should let user save multiple system prompts, but that there’s no real defensible business in distributing GPTs, as a chat interface is not that good for most purposes.