New bike
tonyride has nailed it!.
Your better off buying from a local bike shop(LBS) if you have any issues and something goes wrong you can bring it to them and have them fix it, sometimes in most cases if within the (walk out the door warranty usually 30-90 days) it will be done no cost, again it depends on what has occurred. If you buy a bike from those department stores and something goes wrong who’s going to fix it for you? those type of chain stores don’t really have a warranty to fix it and you have to ship it back to the manufacture at your expense and it takes time to get your bike fixed and sent back to you..., If your bike you purchased from the LBS usually comes with a 30-90 day service guarantee for any issues will be fixed, then after that you have the manufacturer’s warranty depending on the brand, make and model and type of bike.
to sum it up, spend a little, get a better bike, a good bike shop to help you get fitted for a bike and then you have a bike shop with great people for life...not sure were you are in Central NJ, but under the bike shop section here all of the shops have an owner or employee on this site, and all the shops on this site, are all great! from the owners to the employees all will treat you very well...