If you don't mind starting with used skates, ask when the rental line will go on sale. Some great deals can be found in the rental bins in late summer. Once you're rolling, it may take an hour or so before any feature of a skate boot starts to bother you. If at all possible, try renting different models, either on the same day or over several days. Too often, the main priority of first-time buyers is to spend as little money as possible, which invariably leads to a disappointing introduction to the sport.
Cheap skates are more likely to break, too.
Broken buckles or detached wheels are extremely dangerous when they occur at a roll. Unlike higher-quality skates, cheaper models often can't be upgraded with new brakes, better wheels, or faster bearings. Their unwitting new owners, discouraged when they just can't seem to keep up with other skaters or get the hang of the basics, think it's their own lack of skill that's the problem. Those who persevere end up spending more money on upgrades or on new, better-quality skates. Go to a sporting-goods store where you can find a wider selection and qualified sales staff to answer your questions and make suggestions.