This dude blew my mind as a kid. Finding Aron in Granite Cave was already cool enough cause everybody on the playground were using repels in order to avoid encounters so I was one of the only ones who had him. Then Lairon was KILLER. I loved Lairon so much. It takes so long to evolve him and there weren't many 2-stage Pokemon in Gen1 so I though Lairon was it. When he evolved AGAIN, I was losing it. It felt like I found a legendary Pokemon. That feeling of discovery still sticks with me when I use an Aggron on my team.

Also the fact that he's a huge angry metal dinosaur that just wants to be alone and landscape on his mountain really resonates with me. I want to live on a mountain home being a hermit introvert with my metal dinosaur buddy and his 1,000 little metal children living in nearby caves eating railroads and cars