Hahaha, whoops, sorry.
My buddy had HPM-100's back in the day, got them and his other gear at the PX. Can't remember the nickname he gave them (I'll ask) but it wasn't flattering. Sold them to his brother who didn't know any better. Back then they were "sophisticated" using polymer tweeter and CF woofer, designed by Bart Locanthi, both as an answer to his own JBL Centuries and a middle finger to the company he'd departed. Loud, bold, dynamic, and at least to me, the antithesis of what I look for in 2-channel sound. Back in the 70's I had JBL's and Infinity's, but mostly the former. If you're looking for a sound, you've certainly got it. But they will never, ever disappear. They will always sound like speakers. Which could very well be what you want!
Thing is, and as mentioned above, with the exception of class D amps speaker design has advanced leaps and bounds more than anything in audio over the last 20 years. What is available now from big box retailers blows away a lot of what was in boutiques in 1990. People designed by ear and intuition back then, we didn't have the technology that we enjoy today in terms of design, materials and manufacturing. The fact that you can score a pair of Canton's with ceramic and titanium drivers for $550 blows me away.
Personally, I'd take advantage of what's recent. You'll get some good recommendations here (ShadyJ took the words out of my mouth), and when it comes to modern speakers there's really no wrong choice. Unless you want a visual statement (those monsters certainly are) you'd be doing much better. I'd also be concerned with the longevity of a speaker coming from an unknown history and environment. Just like a vintage car, you usually don't get it for your daily driver - it's your second or third. Fun for a bit.