Lawn-Boy 680540 model - thoughts?

1992 model F series engine, no frills, but a good mower, I have it's brother 680543 that I bought new. It has the good cast aluminum deck, the wheels on the pushers are the standard plastic triangle wheels. I hear the self propel version are no longer available so I would stay away from the self propel models, it's probably not much of a collector's item yet. Give it another 10 or 15 years maybe. I do love how well it vacuum's and bags.