Don't waste your money on an Xmart bike. A $400 Xmart bike will look like it has awesome features available on high end bikes, but in reality, the components are THE WORST YOU CAN BUY. And the person who assembles bikes at the Xmart is the one who knows how to use a wrench (probably an adjustable rather than a set of sized wrenches). The $400 bike at the LBS may look like it has fewer features, but you'll purchase better quality features. And the bike will be assembled by someone who spends a lot of time just assembling bikes and knows what they are doing. I would stay away from a bike with suspension. That's one of those features that you don't need and the cost of the suspension fork results in cheaper components elsewhere.

Folding bikes are out of your price range. LOL, I wish people would read the original post and not suggest $3k bikes.

A bit more info about your riding situation will result in good bike suggestions.