I will clarify that I definitely cannot usually just buy what I want whenever I want. I am often like that with very inexpensive things, in part because I have as much fun with them as I do the pricier stuff. I usually have to save up a bit and hold off buying pedals for a while to get an amp or guitar. I bought four guitars in 2020, got rid of three rarely-played guitars in 2021, and I have a nice guitar coming in May that I ordered in October. I dont really have much in the way of amps right now. The highlight would be a Tone Master Twin Reverb from last fall. I recently bought a pretty clean example of a delightfully terrible amp I played through when I was just starting. I am planning a couple of fun little amps in the next couple of months and thinking over whether I want to get a nice tube amp in the next couple of years, and what the hell that would be.
We are lucky that most guitar stuff is pretty inexpensive. I mean, you can spend a lot of money, but you don't have to for good stuff.