am afraid that much as I like unusual aircraft or ones painted in unusual colours as far as UK is concerned I would not just get rid of the dedicated aircraft and private 777 charters but also the cars as well . Making important people travel the way the rest of us do is the only way things would ever get improved.
With apologies to the biz jet folks here I think if the US didn't have biz jets or they were taxed exhorbitantly then air travel there would be a much much nicer experience since CEOs of big corporations having to fly 'commercial' would soon see standards improve both on the ground and in the air.