Get off my lawn!
The explanation: Impossible Triangle + TW (my company initials) = my logo.
What comes with the basic SFB set? How many scenarios, ships, etc.?
Which version? Are you looking to ensure you have a complete set of an older game, or just looking for the lifespan of the current Basic set? If the latter, the current Basic set has enough scenarios, ship and variants to keep normal people busy for months and months (if not years) of intense play.
The various expansions do open up ship systems, races, classes of ships and more scenarios than you could shake a warp coil at. If you get addicted you will probably end up with them anyway over time.