I did enjoy my ~ 9 YR time with my AVP-A1HDCI until it died.
For something this old, I don't think it's worth the money to upgrade it to anything even if it were still possible, which I don't think it is.
The lack of ATMOS and 4K is a bummer, though. But if you do without it, unlike most of us, then it's cool.
I did not miss the AVP-A1 at all when I changed to my new AVP with 4K and ATMOS.