As a matter of convenience, I would be very happy if the above mentioned park systems would join the GMSP system, and I would even be happy to pay more.
That being said, some of the park systems that require their own ski passes seem to be a little quicker on the upkeep. Not sure if this has anything to do with the fees charged or the dilution of the take within the GMSP system. The UMN Nordic Ski Center has one of the best-maintained trails around, it can compete with the privately owned Green Acres, which is another gem when all the other seem to be marginal. In addition, like Como Park, it is only a couple of miles away from my home. Sorry, Green Acres, if you were 2 and not 16 miles, I'd be skiing there more frequently, I hate to drive far and I avoid it where I can.
It's after heavy snow, at the end of the season or during that January thaw when the extra grooming stretches the times a trail can be skied. So I decided to pay my dues and ski at UMN today. The challenging workout on its three short but varied finger loops was well worth the $3 I left in the pay box!