the impact rmt has on how expensive stuff is on trade is kind of a worthless argument to even follow. prices of currency and items fluctuate with minor balance changes from patch to patch by a much larger amount than whatever effect RMT would have.

and even then who's to say what the right amount of expense for an item is to reach the optimal level of enjoyment? even without RMT this would fluctuate all over the place.

that's not even considering finer points like: if everything is more expensive, you also make more currency with everything you sell.

overall it's just a worthless argument. RMT has probably literally zero influence on how much you enjoy the game other than you thinking about it and it makes you angry for some irrational reason.