If you’re using it for big jobs (large driveways) every weekend – get a gas powered because the time you save will outweigh the extra money. But both have pros and cons. Gas powered
Good: More powerful because they are not limited by home electric outlet current and voltage. More portable because they are not tethered by electric cord. More bang for your buck. Bad: Require re-fueling and periodic maintenance. Are loud and can’t be used indoors because of the exhaust. Often bigger and heavier than their electric counterpart. Electric powered
Good: Require little maintenance. Are more quiet. Can be used indoors. Have affordable light-duty options if that’s all you need. Bad: Have electric motors which need to be plugged in to an outlet – so they are limited in range and power. Generally, they have low cleaning power (unless you spend extra money on a professional one) so small tasks can take a long time.