We are back to the situation we were in before the run up in home prices -- at that time, people were faced with the choice of moving to the outskirts, to save money or staying closer in (but at a higher price point). To make the right choice, it is necessary to put together a cost/benefit sheet. Take out a sheet of paper, draw a line down the middle and list positives on one side, negatives on the other. Be honest with yourself and determine whether the lower payment outweighs the extra commuting time, etc. For some people, it does.
With regard to potential appreciation -- the outlying areas got hit first, the hardest and will generally recover the slowest. The more mature parts of town got hit last, and will generally recover first.
Final thought -- make sure you are considering all of your purchase options in Goodyear -- it is possible that there are foreclosure, bank-owned, spec or wholesale opportunities in Goodyear that might allow you to pick up some additional square footage at a price better than you expect.
Let me know if you need any assistance -- always happy to help.