Synertek 6502 chips, 1984 date-code

I have some Synertek NMOS 6502s from various weeks in 1984, still in their (original?) Synertek static tubes. (At least, "Synertek" is stamped on the tubes.) A few "boy are these stupid" questions: 1. Does anyone have any cool Synertek lore they'd like to share with the group? All I know about them is they made the SYM-1 and were a 6530 second-source. I guess it's safe to conclude they were also a 6502 second-source. :) 2. Is this a "Find" in any sense? (I paid all of 30 cents each for them.) My motivation is to have enough replacement parts to keep all my 6502-based hardware humming for years to come. Though in this case I have several lifetimes' worth. :) 3. Is there any reason to fear that these chips will "go bad" at any significant rate as they age? Is there any way I could store them (reasonably, I mean, no vaccum or outer-space suggestions, please. :) to maximize their lifespan? My plan is to come into work some evening and suit up with the full anti-static treatment at an EMI bench with my little SBC (retrofitted with a 40 pin ZIF socket to avoid bending their machine-straight little legs), and test them all in rapid-fire succession. Is there anything inherently dumb about powering them up? Okay, well enough dumb questions. Just looking for any comments on any of the points, as the spirit moves you. :) -- Ross