Burning fossil fuels is relatively simple and well understood by general public. Modern business strategies to squeeze every cent out of a customer that involves subscriptions, planned obsolescence, adding bizarre complexity for marginal gains are not helping. Buying a very expensive black box with questionable reliability, possible dependency on a manufacturer provided internet services (APIs for updating etc), questionable availability of parts and probably not really fixable by yourself or your local shop with rednecks with wrenches is not very appealing when you are living paycheck to paycheck.