You obviously didn't grow up in the shareware gaming days. All the old Apogee classics (Wolfenstein, Commander Keen, etc) were 1 episode teasers that required you to pay to play the remainder of the game.
I have to say that they (or more rightly Doom) were a revelation at the time: cripple-ware that wasn't crippled.
Most cripple-ware wouldn't give you a fully-functioning product: save didn't work, print had "UNREGISTERED" (or worse) emblazoned over it.
Having a great, polished level for free and the opportunity of buying more isn't my idea of crippleware. There is no feeling of being cheated and no "if only".
