Now to calculate in on how much money you're really earning, you need to factor in bandwidth cost, electricity cost etc. Running multiple instances very quickly runs up your bandwidth and even if you have an "unlimited" plan, the internet company will start throttling you justifying it with the 'fair use' policy.
And time taken to find a buyer
First you assume I live in the us. Second rate is pretty good actually making more then 100$ per day is possible (infact you could make triple that but since im just a single guy i'll make 100-140$ a day). And im not trying to be a gold selling website just a seller who can make good money for doing nothing.
Extremely double for basic economic reasons. If it
was that easy to get that much money (I mean jesus forget what you're claiming is several times greater than what most retail/fastfood/etc workers make), then more people would be doing it, thus driving prices down due to high supply/competition.
When I used to play Mabinogi, the money making method that I, and most of my guildies used (except for buying/selling NX) was to run a dungeon repeatedly until a page needed for a skill quest dropped, then sell it. That page sold pretty consisitently for 1.2m. If I sold that amount of gold I'd get like $3. For
at least an hour or two of work to get the gold, not including however much it would take to find a buyer for the gold. A minimum wage job would pay 2-4 times that amount. Without knowing what game you're doing, I can't find/say equivalent rates, but they're most likely the same.
Um Im not asking for the costs or not if you don't want to help me with what was stated in the OP then don't post anymore tbh.
The problem is that your solution will not lead to the desired outcome
