Hacker News Reader

I think you're presuming too much. As long as your code is documented and you're willing to release all potential IP claims as part of the sale I can imagine there would be someone interested in buying this straight out. You might even be able to sell them some kind of limited support/consultation agreement where you don't do code but can answer questions for a fixed period of time. It's not like you're doing some kind of business exit strategy. You're just selling off an asset from your portfolio.

Not essentially true, the valuation would just be a lot lower if you sold it As-Is + some level of cross-over support/training (Consulting Dollars)

This assumes the purchaser isn't just shelving it and killing off a competitor.

It't not an awful idea, especially since you know your competitors in the space (who to target).

It can't hurt to try. It's certainly worth sending some cold emails to some GIS companies.