... did you even pay attention? People want the adapters, but they're hard to find and often very overpriced. GameStop has a nice little stash of them, but the only way to buy them is with this ridiculous bundle. They're effectively extorting the desperate into buying $120 worth of GameCube controllers. And what's worse, is that by locking their supply of adapters behind such a high price wall, they encourage others to jack up their own prices as well, due to the artificial scarcity GameStop has created.
There is not 'artificial scarcity' there is a real scarcity and if you want to blame someone for this blame Nintendo. You can call this scummy all you want but its really not, Nintendo made a ton of the GC controllers and hardly any adapters, Gamestop is doing this in order to get rid of the very large stock of GC's they have when compared to the adapters. Again this is Nintendo's own fault, if they had not made the adapter so hard to get in the first place Gamestop wouldn't feel the need to maximize every sale.
Also remember its not like they started it like this, they had shipment of them a few weeks ago for order (To ship the 15th) without a bundle or anything but I'm sure they noticed that a lot of people who bought these immediately put them up on Ebay and other sites to mark them up (something they did not do when they easily could have) so this bundle is also largely a deterrent for scalpers as well so their entire stock isn't getting bought out only to be resold on other sites at 4x the price.
If instead they had not done this and had the adapters and were constantly sold out and there were reports saying that most of these were being bought out by scalpers we'd be having the opposite conversation with people saying why didn't GS do something to stop the scalpers in the first place.
What I'm trying to say is that they are damned if you do damned if you don't. I'm not saying thank god GS is super awesome for having this bundle, but at least look at it from the business perspective, its not about making more money by jacking up the price with addons (They don't make a lot of money from first party accessories as it is anyway), its about dealing with a stock disparity (very little adapters and TONS of extra controllers) and preventing scalpers from taking advantage of the limited stock they do have.
I know its easy to vilify GS and people love doing it (its really easy) but not everything they do is directly evil either.