The problem is that the Aeroride YB2000's initial purchase price is higher than many traditional petrol scooters, which may put some buyers off. However, electric scooters generally have lower running costs than petrol scooters because electricity is cheaper than petrol, and carry a potentially lower cost of maintenance. Owners and buyers are trying to figure out the real cost of ownership over several years, taking electricity costs, battery replacement, maintenance, insurance and the potential of government incentives for electric vehicles into account. The residual value of electric scooters vis à vis petrol models is also discussed, in a rapidly changing EV market. Some users are breaking down the costs of their expenses in detail, and others are guessing what future costs will be as the technology matures. This is critical to many buyers trying to rationalize the higher up front cost of the YB2000 versus long term savings.