I quit high-end hifi when our daughters were around 3 and 5 and didn't start again again until they were in their early 20s
Now that your kids are of working age perhaps you can explain to them the sacrifice you suffered by neglecting your audio hobby during their maturation. I would be happy to negotiate for you a contract with them which requires them to send home to you, say, 25% of their gross income so you can at long last buy your dream stereo system -- which you would've had many years ago but for your selfless sacrifice to them.