I had a quick question regarding the used market, specifically the right time to list aircraft. I'm running Deutscheadler in S3B with about 70,000,000,000 valuation, 1000 aircraft, and making a sizable daily profit. I have plenty of cash, so strategically planning replacements aren't a huge concern for me.
I was curious for my A310-200/300s which are approaching 12-13yrs of age, when was the right time to sell them. I see people commonly listing planes as low as 7yrs, all the way up to 15-16yrs.
Any advice on when is the best age to send aircraft off to the market?