Lately I've been watching my several more-than-capable decade-old gaming machines die one by one. Usually it's just time to upgrade, so sometimes I buy a new motherboard (my definition of "PC death" is when the M/B dies), sometimes a used M/B, sometimes the M/B, CPU and RAM all need simultaneous replacement, and I just let the whole thing go and strip only the newest peripherals.
Newer PC's certainly offer more computing for the money, and for the electrical power used, but any old quad core (or more) is more than enough for Windows 10, especially with a newer video card. Package deals are always more PC for the money, but you never know what proprietary H/W madness or near-malware shovelware HP or Dell is going to slip in there. Hopefully your new box uses a standard power supply et al. The specs are very good for only $550.