Plenty of people still use Vim; probably more than use Neovim (just a guess). Now that Vim has asynchronous plugins and terminals, there won't be much differenc

Plenty of people still use Vim; probably more than use Neovim (just a guess). Now that Vim has asynchronous plugins and terminals, there won't be much difference for you unless you want to write your own plugins or elaborate configurations: you can do that in Lua with Neovim, which is much saner than using Vimscript. The only other reason might be if you want to use a plugin that’s not available in Vim.