I don't think it matters if people "care" - you are still in the ecoystem. I mean I here you but you don't even sound convinved, and that is one of my points. So is it better to be locked into one thing that maybe works or using something that gives you multiple options of things that works. I think that is a no brainer difference. With that thinking I would think you would never use any other LLM becuase GPT is the best.