Amazon has a terrific return policy. That is the reason why Amazon is the first place I go. I don't kind spending a few extra $$ just because their return is excellent.
You are never going to have 100% satisfaction from all customers. No slight to you @Brian John.
Read through the ASUS firmware release forum for AC3200 threads and they are quite quiet.
Read through the Merlin firmware release threads and pick out the people with AC3200 setups and you will...
Pick one of these up:
http://www.ebay.ca/sch/i.html?_from=R40&_trksid=p2057872.m570.l1313.TR0.TRC0.H0.XMini+Octopus+Foldable.TRS0&_nkw=Mini+Octopus+Foldable&_sacat=0
Then your temps will drop to around this:
2.4 GHz: 45°C - 5 GHz:40°C - CPU:48°C