Lucky you. Unfortunately I have to spend much more than that to be satisfied. Been doing hifi for a long time and my system has become better and better over the decades. It's also become more and more expensive. I recall in my younger, poorer days being perfectly happy with a much more modest system.
I think the OP asks about spending more and getting a better DAC. Yes, one could do this, but more expensive doesn't necessarily translate to better sounding. Some kit is worth the additional cost, but a lot of it isn't. In some cases, it could be worse.
Some kit is less expensive than expensive kit but objectively performs just as well.
Some cheaper kit may even outperform some expensive kit .
So how is it 'worth the additional cost' to buy the expensive kit? Are you saying there are some expensive DACs that simply cannot be audibly matched by a cheaper DAC?
(I kind of knew your argument was going to end up being a subjective one about 'satisfaction'. )