Being content in this often crazy hobby is a rare and desirable state of mind, IMO, a lot of audiophiles throw money at imaginary "problems." :)
Are you interested in streaming music if you don’t already do that?
One last thought: I recently disconnected all my cables, including wall plugs, cleaned all the contacts with Deoxit, and applied a VERY light coating to all contacts, including fuses, of graphene contact enhancer I purchased from a fellow in New Zealand, who calls himself the Mad Scientist. This made a substantial improvement throughout my system. Total cost was under $50 bux for everything, including shipping. Terrific ROI.
YMMV