DCS, and LOMAC and Flanker before it, were never strong in SP.
Quite frankly, if someone else did a study sim of the A-10C it's quite likely we'd like it more than ED's. However, the odds of that happening are worse than winning the lottery, so if you want the A-10C in combat, DCS is it. So I don't doubt that even if it was a lower-fidelity sim of the Apache than ED would make, I'd probably enjoy CH's one more.
The Jedi Master