I think the kits that are truly rare will continue to go up even after the "golden agers" are no longer in the hobby or have sold off their collections. The kits that now have inflated values not due to rarity, but due to some sort of "neat" factor will drop rapidly in value once the "non rocketry" collectors take over "collecting" the kits....many kits now trade on ebay FAR and AWAY above their realistic objective value on ebay due to "excitement" factor among some hobbyists with mega buxx $$$ burning holes in their pockets.

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When in doubt, WHACK the GAS and DITCH the brake !!!

Yes, there is such a thing as NORMAL, if you have to ask what is "NORMAL" , you probably aren't !
Failure may not be an OPTION, but it is ALWAYS a POSSIBILITY.
ALL systems are GO for MAYHEM, CHAOS, TURMOIL, FIASCOS, and HAVOC !