I've found that software in particular is getting tough to find. A few years ago, you could almost always find MacDraw II on eBay, often shrinkwrapped. Even a program like Word 5.1 wouldn't have been too hard to track down. Now it's tough to find much of anything older than CD-ROM there. I've been looking for a shrinkwrapped MacWrite II for a few days now with no luck. Had I been searching in 2004-2005 it would have been easy to track down the brand new software.

Same with compact Macs. Anyone remember being able to get Mac Classics for a penny plus shipping?