Bad Idea for a niche community
Currently, DCS is my absolute favorite sim and go to hobby! What ED and the rest of these developer companies do is nothing short of amazing work. However, I can't always sit down and fly because life happens (work and school). Also, with a one time price.. one may consider that the amount of time that they've used the module and had fun was totally worth it, even for a relatively high price like the F-14 Tomcat. For example, I have spent enough time with the F-14 to feel like I've done okay with that $80. With a subscription, you'll never get there in regards to feeling like you've gotten your money's worth and may even sour the experience forcing you to learn, fly, and then give it up before you've spent north of $200 for the thing.
I love DCS World and will always support the modules and add to the collection because it's such a great product! Literally the best! BUT I WILL COMPLETELY GIVE UP ON DCS WORLD IF THEY FORCE A SUBSCRIPTION... and I'd never think twice about it!
On the contrary, I'd be open for the OPTION of a subscription OR full lifetime purchase. I think that's fair and will address most parties needs.
As a final statement, I strongly recommend that all developer companies proceed about their funding plans in this regard very carefully. If they attempt to sell the idea that a subscription service would allow them to develop more effectively and they passed the idea, then later the end users find that subscription service was not to their liking for whatever reason (development time still slow, cost too much, bugs for months, etc.) it could potentially ruin DCS World for a lot of people forever. Please consider this.