Oh, I have gear envy, there's no doubt about it.
I mean, it's not like I want a lot more stuff, but I do like cool stuff and I love good craftsmanship and design.
I really admire some of the tents out there. The simplicity of design and function of the Shire's stuff, and the more complex stuff as you get into bigger tents, with the cuts and poles to create a space. There's some cool engineering in all that. My own tent is hillybilly as can be, but I love that tent and I wouldn't use any other.
Same with trekking poles. The expensive, lighter ones are impressively light, but I like my stick.
Stoves can be a marvel of engineering and craftsmanship. I love looking at them and seeing all the work that's went into them. From the incredibly complex to the incredibly simple, I really do appreciate what goes into them. It's so easy for me to poke holes in a cat stove according to the instructions, but when you read about the process of finding the right size, spacing, and number of holes, you realize that even the simplest of them have had a lot of thought and trial and error to get them to that sweet spot.
I've never even seen a really high quality sleeping bag but I'm sure I could tell the difference between one of those and what I have, and appreciate it too. And yeah, I might give a little bit of thought to how nice it'd be to have one.
The only important trick, which we all here have mastered, is to be happy with what you have and grateful for the time to use it. I'm really pretty darn happy with my gear, so I'm not always easily convinced somethings better than mine, but I will come around if I'm shown why. The Sawyer Squeeze is an example of that. After being told about it here, and looking into it, I had to admit it's better than what I've been using, and now I do kind of want one