Microtransactions covers a lot of things, but there are some times when I think it's alright and other times when I don't feel that it's a good move at all. The concerning variations are things that affect gameplay, or the gaming experience. Items that can only be purchased from a shop, special characters, and even pay for convenience—XP boost examples, are things that should be avoided. What they do is create an atmosphere where you feel like your experience is hampered because you haven't donated enough money into the game.

As a general rule of thumb, if it's made before the release date, it should be available at purchase.

This changes however with DLC additions like extra missions and additional content purchased after the release date. The most common that people know of are skins. This is because during game development the graphic artists are usually the first to finish their tasks with programmers working up to the release date. A skin pack can be developed during that time and released after for an additional price. Since it does not affect the base gaming experience, charging for that if perfectly fine. 

All in all I don't think it's right for companies to charge for segments of a product, but I believe with the current market they can and should be allowed under certain situations. What EA did however is the most extreme of the bad side to this debate, whereas Borderlands 2 with their Holiday Season micro campaings and head packs is different.

I think this sums up what everyone experiences:
[img]https://i.pinimg.com/564x/34/85/31/3485316745b7cddc43dd89e07a6c5ffc--chica-gamer-games-today.jpg[/img]