Microtransactions would imply that you need to pay for them. Only 1 out of the 3 new cases will have that. And the current one in-game you don't use real money to pay for either. Only the 1 case from Gamescom will need you to pay to open, so it doesn't really bother me. I just won't open that case and instead save them if I get them and hope once they are no longer able to be obtained they go up in price on the market so that I can sell them for some decent money. All of the other cases though, you use the in-game credit that you get from winning games and getting kills to purchase the crates and open, which is a great feature and doesn't count as microtransactions.