I'm a gamer first and foremost as well and I'm in the hobby for my own enjoyment. There are a few reasons why I'll never buy a Xbox One.
1. Used Games - I buy a lot of used games. I can't really afford to buy every release as they come out and so I end up looking for a used copy after the fact. Plus, if they are limiting used game sales to "approved retailers" that cuts out a lot of mom & pop stores. I run a mom & pop store and it's hard to compete w/ big boys on a lot of stuff. Now, with Microsoft basically saying "fuck you little shops, we want only these 'approved people' to sell used games" that cuts out an entire product line for these stores to carry, which will make it harder for them to stay open.
2. Always Online/ Mandatory Check-Ins - Over the course of my gaming life, I've been known to take game consoles w/ me on vacations or to other places where I can't connect to the internet. We rarely stayed in hotels and instead stayed in campers and motorhomes. If I have to have an always on/ check-in w/ a console, then I can't take it w/ me. Because if the console won't let you play games when you're not connected to the internet, it's pointless to take it with you anywhere, ever. It's the same problem a lot of service members are saying. If they go on tour, then they can't take their console with them to game on. Cause out in the boonies there is no internet. Hell, 10 miles north of my house you can't get cable. I know people who have taken Xboxes and PS2s to Iraq and it was one of the only things to keep them sane. Now if they go off anywhere, they can't take the One with them to play their hot new system while they are serving.
3. The Fucking Cloud - If they are using the "cloud" to process sections of their games, rather than the hardware. It essentially makes the games worthless in 20 years when all the processing servers shut down. These are not things that can be left running indefinitely due to costs. So when the system has run it's course, wave goodbye to your games, or at least the exclusives you liked. Then go buy a PS4 and repurchase all the multiplatform titles you enjoyed.
4. Non-Upgradeable HDD - Seriously, you have this system that requires you to install everything you play onto the hard drive and then you don't allow it to be upgradeable at all? Really? That's retarded. Especially considering the size of games now a days. If it's ripping an entire blu-ray disc to the HDD, that's a lot of info. Sooner, rather than later, you're going to run out of room. But, no, you can't put in a 3TB drive or something lots larger.
The Kinect is getting rammed down our throats, the discs are basically disc-based key codes and everything else involved with the system is so anti-consumer that it's ridiculous.
Like I said, I love my 360. I wanted to love the One. But unfortunately Microsoft has come up with this, thing, that from where I'm standing looks like it's going to do more harm to the industry than help it. When the 360 launched, Microsoft stole me away from the Sony crowd. But come release time, I'm going back to Sony and my wallet is voting PS4.