I'm always amazed when someone claims that these kinds of microtransactions don't affect design or gameplay at all, and you can ignore them and have no less lovely an experience than you would have had if this predatory business model had never reared its ugly head.
Sure, right: the designers don't design for microtransactions at all. They don't build in any incentives to spend more money. They tweak progression just perfectly so that the rate at which you acquire new stuff is just perfect, and it wouldn't be any more fun to get stuff faster. They're totally optional, guys! BTW, would any of you gentleman like to buy one of the many fine bridges I have for sale?
There is no such thing as a game with microtransactions whose design is not tainted by them. There is no such thing. Every game with microtransactions builds in incentives to spend more money; every game with microtransactions is designed to ensure that the optimal experience is one in which the publisher gets more of your money. It's just that it's acceptable in games which are free up front because hey, they're free up front. But in a $60 retail game? Come on.
"Pay so that you don't have to play" microtransactions are particularly odious, because they reveal the underlying bad design of any game they're in. If I'm paying so that I don't have to play the game, what does that say about the minute to minute gameplay? It says it's not fun. It says it's a slog, something negative, something I endure rather than enjoy so that I can get the arbitrary rewards I have been conditioned to want. It says that the game has little to offer besides a skinner box, at least past a certain number of hours.
Can you imagine if Super Mario 3D World had microtransactions that allowed you to buy green stars for $1, so that you can get out of the chore of actually playing the levels? Would anyone buy that? Of course not, because playing the level to get the stars is the game, and it's extremely fun. If I'm paying for cars in a racing game because, man, I don't want to race for one more hour, what does that say? It says that the moment-to-moment gameplay is not fun, at least after a certain number of hours, and it says that the game was designed so that I would not acquire cars as fast as I want to, so that I would rather spend real money to get something than actually play the game I already paid $60 for.