1. Taxes are based on the price you paid for the house, which means you will not only pay a premium for new construction but a premium in taxes.
2. New construction does not increase in value as quickly as older homes, and has a higher potential to drop in price as other subdivisions compete for buyers.
3. Window coverings, and dressings are not part of the deal on new construction, sometimes you can get them thrown in for a premium price if you buy the model home.
4. Plants and landscape are usually at a minimum.
5. After the builder warranty is over and the house settles, you may get cracks, or doors may not close properly, this will be an expense you will have later on as well as replacing the carpets within 5 years, repainting inside and out after the contractor grade materials wear out.
With so many homes in this area that were built in the past 15 years, why pay premium dollars when you can purchase a resale for a bit less and pay less in taxes. You cannot base your decision on what the average sales price in the area is, because you are buying new construction, there are no other comparable homes except the other homes in the neighborhood to get an average sales price. Speaking from experience, I bought a brand new Pulte home once, the experience was less than I expected. Best of luck
You need to sit with a competent agent and have them pull data, explain the trends and isolate what new/newer homes have done over the last couple of years.
There are no guarantees, anywhere. http://hankmillerteam.com/atlanta-real-estate-conditions/cum might be helpful from a broad standpoint
Drop me a line if you're not working with an agent, I'm an appraiser as well.