Ah, well the yellow side strippers are good but for different situations. If you want an accurate, repeatable length of strip on thin wire, useless. Of you want to strip thicker wire - you can just about get away with ramming 3-core flex in them - or you want to strip a piece out the middle of a wire so you can splice in another, brilliant.
Your automotive crimps, well like a lot of these things, I've seen some that do a far better job than those...but I've also seen the price tag!
Your pin crimps certainly look good. If they do the job without mashing the pin, the pin stays attached to the wire, fits the shell and you've not lost your mind getting to that point, then what more can you ask for?! If you're having trouble or working on tiny crimps - like those crimps for 2mm pitch pins (smaller than the normal 2.54mm pitch) then the PA's are a good bet.
I've not tried one but I suspect your iron is better than mine. I'm hung up on the gas powered variety having initially had a use for one in automotive applications. Not needing a cable when you're miles from power, standing on your head in a car's footwell swearing at anything in range, is a real bonus. Mine's good, but it's hardly what you'd call regulated temperature when the angle you hold it at can change the gas flow
Kind of jealous of one of the YouTubers when he had a pop with his hot air SMD rework station and then put the PCB in his re-flow oven. That's when you realise how far behind you are!
Temptation it may be but a good tool is going to be with you a lot longer than a graphics card. Worth investing in the one's your going to get good use out of. I'll let you know where the nearest tooloholic anonymous meeting is when you get that bad!