I developed an application, working fine and in a closed beta stage for last 1.5 years, it's been 3 years on development. Quite stable, full-featured and polished as well. It's a software for a certain market and can compete with other applications (only 5-10 decent applications exist in the same market). Simply put I believe in it and beta tests results supports me.
What's the best way to make money out of this? I especially appreciate any comment from who has been through this, any good or bad experience.
Some options I've been thinking over:
Going with an Investor or (a small investor, venture capital, angel funding etc.). I've already got about 3 investors contact and they are highly interested in the software, since the software is complete and making a demo such an easy task attracting new investors are really easy.
Going open-source (although it's not a too common software there is almost no open source alternative, so it should be well accepted), and building a business model over open source to make some bucks (support for companies, commercial license for enterprise solutions etc.)
Selling it by myself, Opening a web site, marketing it with my own budget, putting a decent price tag (cheaper then competitors) and selling it, maybe even giving it free for personal usage.
To be honest I solely focus on the money aspect of this.
All code written by me so I own all copyrights of the source code and there are no license issues regarding the libraries.