I just switched from satellite back to cable. Mostly because I now pay for phone, internet, and all available channels what I used to pay for just internet and phone.
Just make sure you have an up to date time machine backup. It will take hours to turn off firevault, and yah, it's possible, but unlikely, that something could go wrong.
If it is working for you now I wouldn't worry about it. I don't have anything nearly as new as what you use. Rest assured that you haven't mistreated your ssd, however.
Luckily, it doesn't matter what anyone thinks is art or not, or good or not. If it moves you, it's art. The value only matters to the purchaser and his insurance company.