@Sanojei-S Alright man, if you wanna fight for your $2 back, then be my guest.
I used that figure because I figured if people had a better idea of the value they were losing then they could make better judgements about how they want to go about things. For me, my time and my emotional workload is worth something. Not much to be fair, I'm not exactly a six digit earner out here, and I'm replying on a forum for free, but its worth something. It honest to god doesn't bother me if I never get my $2 or less of store time back, or at least not enough for me to do much of anything about it. I'm not writing the company over it. I'm not going to quit playing over it. It's $2. It sucks, for sure, but life goes on.
Also in response to some of your examples: I might not go to a different gas station if my total savings is $.10. If I'm filling up the car, and that nets me a savings of $1.50 I might. If I'm filling up a fleet for my business, and I'm saving $150, then I sure as hell will. Magnitude matters. Same as in the RMT problem. SEGA doesn't really care about someone exchanging $2 for 10 million. It's not worth it. However SEGA does care if its 500 or thousands of people, it's messing with the market and therefore their F2P economy model, and there might exist a liability for not stopping it considering it's a great way to launder money.
And yes, I'm saying for probably the majority of people playing this game (I'm assuming adults who make their own money) it probably isn't worth the bother from a pure "I paid for it now give it to me" standpoint. From an emotional perspective, sure. For some people this is a big part of what makes life enjoyable for them. I'm probably in that category. At the same time I think it's a good idea to reframe things multiple ways and ask concrete value questions so you don't end up ruining your week over a small injustice.
Or I guess people (not meaning you) can be the kind of people that hunt others down and call the cops because they stole $2 out of your wallet. I get that you don't want to look like the kind of person who would just let someone take that amount of money from you, because it makes you seem like an easy target for larger injustices, but this is the internet. I doubt this experience is going to change much.