If you are thinking of buying outdoor furniture, there are a number of things to keep in mind before you buy. Price is always a factor even if you do not have a budget in mind. Remember that just because you pay more, it does not mean the item will be maintenance free.
For the sake of choosing furniture that is not tacky, skip the plastic and aluminum folding chairs. They are fine for backup, but a nice set of chairs that are not only attractive and comfortable, will be ones you will actually sit in.
Anything made of wood, even teak, requires maintenance. Weather does eventually take its toll. If you live in the desert southwest, skip wood. Period. It just does not last.
Wrought iron is nearly weatherproof, although you will occasionally need to repaint if it is not powder-coated. While heavy, at least you do not have to worry about the wind blowing it away, but you will most likely not be moving it around much because of the weight. If you buy furniture that is powder-coated, heat-set, the paint will last much longer than regular paint.