Conventional gas-electric hybrid vehicles can be more eco-friendly than their gasoline-only counterparts, but they also can be more economical. Fuel savings can eventually outweigh any price premium for the hybrid powertrain, but since a hybrid is a more complex vehicle, will you give back some of that economy with higher costs for maintenance and repairs?
The answer on regular maintenance for a hybrid, including normal wear and tear, is generally no — at least for many years of use. The answer on repairs is more complicated and applies to common parallel hybrids, not to more expensive and complex plug-in hybrids that are designed to operate as full electric vehicles part of the time.