Some of you know I'm an avid Infocom collector, particularly of the Commodore variety. I rank them like this:
1 & 2) Amiga and C128. These versions are tops in my mind. Because the C128 was comparatively rare, and most Amiga owners were not into text games, these games are pretty hard to find.
3) Commodore 64. These versions are nice but are a distant third because I prefer to read my interactive fiction in 80 columns, not 40. But I keep 64 versions on the radar just in case something really unusual pops up. Like this "game":
I don't collect every single title; only the ones I either enjoy playing or can imagine myself playing some day. That pretty much eliminates most of the time any titles with "advanced" difficulty ratings. This isn't a guarantee, but I don't actively seek them out unless Douglas Adams was involved, or the genre piques my interest.
I don't collect non-Commodore platforms.
If I did I'd consider the early Macintosh versions, but I really do prefer Commodore's black screens and white text (or light blue text if in 80-cols on a C128). And I play these on original hardware unless I'm traveling, which isn't often. It's what I'm used to and have always done. Playing on an old Macintosh would be fun, I suppose, if for no other reason than to imagine what Douglas Adams experienced when he wrote and played his own Infocom adventures: (Hitchhiker's Guide to the Galaxy and Bureaucracy).
While I knew I couldn't be the only person on the planet to own A Mind Forever Voyaging for Amiga, I was apparently the first person to create and provide an ADF for A Mind Forever Voyaging, which I ultimately submitted to TOSEC, too.
I've also collected fascinating notes over the years about Infocom sales (sadly, they are quite incomplete) and have always had a deep fascination about the MIT-borne company.
Over the course of the past several months, I've lucked into a total of 4 Amiga titles - all on my "yes" list - entirely shrink wrapped and never opened. Hitchhiker's Guide, Bureaucracy, Wishbringer and A Mind Forever Voyaging (so now I have one complete open version, and one museum piece).
In an unexpected bonus, when I got Wishbringer this week the seller put something really special in the box: 4 individual Infocom "Zork News" newspapers! I've never actually seen these in person before - only online. A friend of mine shot me a link to a large scanned collection of them. I will see if my copies are all represented there this weekend.
Great! Something else to try and collect to fill the gaps. =)
Kind of like how Dungeon Crawlers aren't loved by all, I realize these games aren't for everyone, either. Hell a lot of them aren't for me. But the good ones really can bring a huge sense of entertainment and accomplishment. And if you've never played one, I'd recommend either Lurking Horror (especially the Amiga version which features sound), Wishbringer, Trinity or A Mind Forever Voyaging. You won't regret the time spent.