Yesterday I was at a Bikeshop and was discouraged to buy a wheel hub motor eBike compared to a bike with these motor next to the crank. Apparently if you change

Yesterday I was at a Bikeshop and was discouraged to buy a wheel hub motor eBike compared to a bike with these motor next to the crank. Apparently if you change your wheel (i.e. having a flat), you loose your warranty from a supplier(not going to name). So a big negative for me is the added complexity and dependency on bike shops for simple things as changing wheels.