Sorry, I don't know current market value of your Calypso versus used version Aesthetix Callisto.
If value of your Calypso plus $3500.00 would put you in a Callisto, I would move to the higher range model. Later you can upgrade the Callisto to Eclipse if you wish.
These two are on different performance levels, Callisto is Jupiter series, Calypso is Saturn series.
This is just my opinion, I used Aesthetix in my system for more than a decade and when tubed up right it’s way up the chain in performance.
If value of your Calypso plus $3500.00 would put you in a Callisto, I would move to the higher range model. Later you can upgrade the Callisto to Eclipse if you wish.
These two are on different performance levels, Callisto is Jupiter series, Calypso is Saturn series.
This is just my opinion, I used Aesthetix in my system for more than a decade and when tubed up right it’s way up the chain in performance.