I'm ABSOLUTELY willing to pay an upgrade fee. Even better, i'd be happy to pay a monthly subscription if it meant bug fixes, texture/graphics upgrades, and new features were prioritized.
And while I'm at it, I can't for the life of me understand why ED doesn't change over to the Microsoft Office 365 pricing model. It just makes so much more sense for both ED, and believe it or not, for us, too.
For ED, it really helps to even out the cash flow and make revenue forecasts realistic.
These 2 things are key to keeping ALL the modules up to date and less bugged.
It also allows them to decide to hire more developers to make more modules simultaneously, or perhaps get a module out the door in 12-18 months instead of 3-5 years.
If you use the Microsoft historical example, you basically take the MSRP of the product and divide by 36, which gives you the monthly fee.
E.G., this could result in you flying the Hornet for less than $2 per month...
If you're willing to commit to a two year monthly subscription, maybe they lower the price to $1/mo, and/or include the PG map.
To increase the user base, I'd retire the TF-51, convert the SU-25 to payware, and give the Mig-15 or Sabre as the free module.
the TF-51 is too hard to fly for a noob, and the SU-25 is too complex.
The Mig or Sabre are truly iconic aircraft that almost anyone would love to fly, they're easy to get into, and they're relatively simple from a development standpoint.