Because I'm a gearhead and I like them.

I would've hoped that was obvious... So, to be more specific, if that's what you were asking:

• '84 Oldsmobile Delta 88 Royale
  • This was my grandpa's, so it has sentimental value.
  • No one preserved these, so it's also super unique.
  • I've always loved the old land yachts, there's nothing like driving a couch down the freeway.
• '85 Honda Shadow VT500C
  • It's a good little motorcycle. Reliable, cute, and slow enough that I'm less likely to kill myself on it.
• '93 Subaru Loyale 4x4
  • This is probably the least rational, considering I own another station wagon, but I really like it. It's easy to work on, super practical, fuel efficient, and comically slow. I take it offroading and camping often. It also isn't worth much and doesn't cost much to keep going.
• '06 BMW Z4 3.0i
  • It's a sports car. It's fun, and probably one of the better deals in the category these days.
• '07 Volvo XC70
  • I've converted this into an RV with an office, bed, and kitchen. I go on multi-week-long trips in it without needing to take time off of work.
  • It's also been heavily modified by myself to be quite offroad capable.
  • My small community of viewers on YouTube also love this thing, so I can't really sell it haha.

I'll also mention that all of these vehicles combined are worth like 10-15k, which is signifigantly less than if I owned a single "nice" vehicle, and I haven't had to go into debt to own any of them.

I'll also also mention that, even as a gearhead, I generally agree with the fuck cars movement and whatnot. I want better public transit and such to get those that'd rather not be driving off the roads. Plus, driving in cities suck, I'm relieved to leave my car at home or a park 'n' ride and take transit into town. For how "free" America supposedly is, people sure don't have the freedom to not own a car.

That ended up being rather lengthy, but what'd you expect asking someone about their hobby...

Some people like and collect cars... Just like any other hobby.