Price:
Prior to purchasing an elliptical trainer you should have an ideal amount of money you are looking to spend. By having a predetermined budget you're unlikely to spend more than what you can afford to and get the best elliptical trainer for your home. This will also help as many online retailers allow you to select items by price range. You have to understand oftentimes you get what you pay for, so you should be careful as to not buy too cheap of a machine.
Quality:
A quality of your elliptical machine is also vitally important. You need to make sure that you take this into account prior to purchasing your elliptical machine. Too many newer users do not research properly purchase a low-end elliptical machine only to find it breaks after a short period of time(usually just after the warranty period). Then, they must go out and purchase a more expensive, higher quality machine costing them more than if they bought a higher quality one to begin with since they had to make two purchases.
Size Of Machine:
Most elliptical trainers are all similar in size, this sometimes poses a challenge for people looking to use an elliptical trainer, but are limited in the space they have to dedicated to it. Before you purchase a machine online visit a physical local store and measure the machine you're thinking about buying to make sure fits into your space. Many online stores will have measurements of each machine but they're not always accurate.
In conclusion if you follow these few simple principles should successfully buy the best elliptical machine to use in your home.