>The community is entrechend in 1.5 because that's what everyone is now familiar with, IMO

That probably has some weight to the community's decision to still use 1.5. Other reasons (and more important IMO) why we're still stuck on 1.5 is due to nerfing 2.0, and the plethora of user trained models based on 1.5.

I'm continued to be amazed by the quality possible with 1.5. While there are pros and cons of each of the different offerings provided by other image generators, I haven't seen anything available to the public that can compete with the quality gens a competent SD prompter can produce yet.

SDXL seems to have taken off better than 2.0, but nothing so amazing to justify leaving all the 1.5 models behind.