I say if its for straight out buying cosmetic only. Its fine. I well explain a one of the better examples. Warframe does it good. you could pay for a weapon and a Tato/Potato as we WFers call them plus slot , the slot costs 6 plat per for a weapon and 10 for a warframe. The Potato is 20 a pop for both warframe and weapon. That's 26 plat or 36 included in the price. anyway, most warframes know that buying almost every weapon ( Hema is a iffy thing, because of the ludicrous grind for a decentish weapon. but people wanted a huge grind for vets and well, they got it.) is a Scam because of the outrageous prices you need to pay for some weapon or warframe, or the its not even worth buying it for plat weapons. Then you get in to the what most Warframers get in to when using plat (about 50% or so maybe 40% because of prime parts and mods and some faction weapons that are normally uber cheap for some of them being pretty good) aka Fashion frame. The mindset of Fashion framers , me being one of them is , we go to look good while killing those AI, and such. That is partly where Warframe gets a good deal of its income, the other part is people who are lazy and do not want to grind. This type of model is good, a bit aggressive but just barely. if they took out the need for slots then it would be a lot better. Some people would say that model is pay to win. I say not really. WHile you bypass part of the grind and get to ignore the MR rank requirement, you do not get to ignore the EXP grind and the need for weapon/warframe mods, which take time or plat to get, even buying it from another player doesn't mean you get it at full power. Warframe has a player driven economy, you can trade plat with rando42 or bestfriend3. For nothing or for something you want that is tradeable. But lets say you get a Prime part. you still have to grind for it. Because unless you want to spend ludicrous amount of cash/plat it is NOT worth buying resources. Warframe is indeed aggressive with MicroTrans but its partly that to get people who are stupid to pay for certain things because they are lazy, or well uber fresh people who do not know better.