Buying a memory card, I guess. For the longest time, I couldn't save my game at all on my PS2 because I didn't have a Memory Card. It took a while before my parents decided to buy me one.
This. I don't know how many times did I replay the first 5 hours of Wild Arms, until I finally got hold of a memory card.
What else...
From back when I was a kid, the not really hand friendly square borders of my Famicom controller... The fact that the controllers
were attached to the console. How could people put up with that?
The ridiculous dark non backlit screen of the GBA (but sure I'm not the only one).
The PoS original PS1 drive mechanism, where the center with metallic balls that held the CD in started to fall apart on its own.
How fucking loud the PS4 gets. Hell, I think I would shot it if I was not using noise cancelling headphones. Oh wait, that is not an older console.
How slow Sonic ran on my Megadrive, yeah I see some people are bothered by that today, but back in the day it didn't seem so.
The Mode button on the Sega Megadrive. Meeeeh.
The damn scanlines on the PSP-3000 (not so strong but also present in the other models). That shit drove me crazy.
The weird way the LCD on the DS Lite worked, I don't know how to explain this, but if you set it to brightness zero, it all looked right (albeit very dim), if you set it brighter, it is like black still looked kind of black, but then very dark grey now looked like light gray, and light gray also looked like light gray, and it all looked weird.
The idiotic fuse on the X360 wireless PC receiver that had no reason to exist, blew up often requiring you to solder a cable over it, what again means there was no reason for it to exist. Oh wait, not sure if this is PC or console related.
The classic ATARI2600 standard controller, what can I say, that stupid stick thingy left my hands full of calluses. It was uncomfortable, it didn't respond well, sure the alternative controllers were better.