There is a 2 years waiting list to get an Avanti II and people are ready to pay high premiums to get one.
Once again if you want to compare prices please refer to brand new prices. You will certainly not save 4 millions with your citation. Anyway, it's not because you would have saved some money that it would become wise to spend it in fuel while the avanti can save it. I say again, it's not the price that matters, it the cost of money. When you resell you see how much you lost in depreciation and interest. This is the point.
And to comment the hot weather operations you should first know that the avanti is flat rated up to 52 Celsius while your citation will start loosing thrust at 25...
Please keep in mind that you are addressing people who actually compared these aircraft with correct data, while you obviously never read anything about the avanti.
You are pathetic.