Perhaps you should consider a petition to rezone your property commercial then.

we already are zoned for residential and mixed commercial use, a wedding facility or inn or mountain biking destination would all be welcome here.

If your property and this one can both be used for things like weddings, resorts, etc do you worry that having 2 on the market at the same time will detract from your sales price, or would it increase it?

I'm not asking a leading question, I'm really wondering because I can see it going both ways. On one hand you could have a situation where people who see the other property will also view yours and possibly like it better. OTOH you could have a situation where one party is interested in a wedding or resort location, buys that one, and then other folks look at the market and say, "this area can't support 2 facilities like that, I guess I'll look elsewhere."