I understand where you're coming from, but the ebike industry in the US is in a sad place compared to Asia or Europe. It may grow or if customers get confused and frustrated with their first experience it could just die out. Normally industries that want to encourage growth set up standards,such as Bluetooth or USB. Even a huge company like Apple that sets up totally non-compatible technologies such as Apple Airplay haven't seen much adaptation compared to the number of people using Bluetooth. As for advances in battery cost/technology there really hasn't been much advancement since lithium started being used about 15 years ago. There is always a new type of battery "just around the corner" or expectations that pricing will go down, but it never seems to materialize. I hope you're right but in the meantime I guess the solution for me is going to be to become more hands-on and simply stick to conversions in the future. That way I can use standard frames and other components and just replace the battery, bms and motor as they die. The result may not be as "stealth" but at least I won't be throwing multi-thousand dollar bikes into landfills every three to four years.