Classified as a "Newbie" but felt I had to comment...
Great thread...
Looking at the history of this thread:
- Never had privilege to fly the Aerostar specimen, so can't comment first-hand.
- Flew plenty of hours (50-60) in mostly 500A's (one was Colemill 300hp), some 500B's, and a handful of hours in a 680F. One 'thrill ride" in a 681 Century conversion, that absolutely impressed me with it's performance (back in 1987 era mind you).
- Flew a Duke for 20-25 hours, they eat runway, poor SE performance, are temperamental, 2900RPM historically makes them not make TBO unless you're good on the throttles, need to be way ahead of the plane when up in the FL's.
- Yes, Don's wealth of knowledge is great for the audience. Met him only once in person, hundreds of reads on these threads, hope to use his wisdom when I have opportunity to be a buyer not a renter.
- Glenn (9/19/17): Totally agree; the move around space and hauling capability in a Commander is second to none in this regime of GA aircraft. Second to none.
- Glenn (9/19/17): "you can get a 690A for about the same price as an Aerostar" - yeah, you're right, but Don has a point about TBO's vs. Hots, residual value after running it. - Always fun "to spend other peoples' money" in these discussions

but I do hear his argument.
- Jeff (10/1/17): remember the distance flown in a 690A vs. Aerostar hour to hour is significant. Comment re: latest post from Don about a 690 with ~900 hours if time left (then sell it for near purchase price or re-engine solutions you mention). That's a lot of real estate covered in 900 hours. Not sure your usage model, but 100 hours/year is 9 years of flying...
- Re: Adam (10/1/17): flying "off the beaten path" can be significant. ~$7.50/gallon for 100LL at KSDL from Signature is a flat-out rip-off.
- Jeff (12/18/17): Wife said get a HLOC to purchase the bird? Sounds like an invitation. Get her in a turbine Commander and I bet the deal would be done

- Not speaking from personal experience, but transition from 500S to 690x I bet isn't that bad based on what I saw in the 681 ride I took. Heck, I went from a 310 to 500a's with almost very minimal guidance, other than learning the steering system (back in the days of 1987).
- Again speaking to Don's latest comment, he has a very valid point. 900 hours covers a lot of real estate as compared to the Aerostar. I'm not the expert on the cost of turbine (or piston engine) overhauls, but Don's feedback should be regarded as very high value from personal experience.
Again, fun to spend other peoples' money while I dream to get out of the rental scene.
Roy