At 07:30 on 26 August 2017 there were 16 used 2016/2017 Morgans on Auto Trader 7 were S5 Aeros.
Given that there are more +4s, 4/4s and Roadsters built than Aeros to me that suggests owners were not happy with their investment.
There was ONE S3 Aero.
There were 2 Plus 8 Aeros.
By comparison, at 08:40 on 26/08/2017 a similar search on Car and Classic shows 32 Trads and 4 Aeros in the 2016/2017 bracket.
I would suggest that more data would be needed to draw any conclusions about the availability of Aero S5s in the second-hand market. As we know, it can be easy to observe correlation but very hard to identify causation.
