Yesterday I purchased an upgrade to Acrobat 8. Acrobat has been one of my staple applications since the first version when I used it to aid the proofing process at an ad agency. By pure accident, I picked up the upgrade after it had been made a Universal application, and thus running at full-speed on the new Intel Macs.
It's also the first time I've purchased a large commercial software product and downloaded the software the live, rather than buying it on CD. I've downloaded plenty of software before, from utilities through to full-blown applications, but never what would be considered a 'box-only' product like Adobe Acrobat before.