The following is a list of all Strat-O-Matic season card sets currently in stock (not including special releases like the Negro League set, Hall of Fame 2000, and Baseball Heroes). I’ve included tables sorted by season as well as sorted by release date.
The point of this list is twofold: first, to give you a handy list of what seasons are still available, and secondly, to give you an idea of which seasons might be close to selling out.
Presumably, the earlier the initial release of a particular season, the more likely it is that the inventory of that season is dwindling. I’m dubious about this assumption for certain seasons, however. For instance, I find it unlikely that an especially popular season such as 1927 and/or 1964 – which were originally printed nearly 24 and 18 years ago, respectively – haven’t been reprinted at least once in that time. But until someone from the gameco confirms one way or the other, we just don’t know.
The secrecy of the quantity of supply of any given season is no doubt a deliberate tactic to keep squeezing demand from the company’s customer base.