Lets create a checklist...
Question: If you wanted to buy a site with the goal to resell it in 12-24 months at a profit, what are the leading items to look for?
Here is a start...
1. The ability to measurably grow sales/financial transactions
2. The ability to earn more per transaction either by acquiring the product at a discount rate or by increasing the fee collected
3. The ability to add an additional product/service to the mix
4. The ability to locate new buyers