So I’ve been looking at upgrading my PC and it looks like I can get a better “micro” pc than my current (ancient) desktop for significantly less money than a full blown gaming rig. An example of such a rig is this.
I don’t have high gaming requirements - I play mostly old games, I think the newest games I play are from 5+ years ago.
What reasons are there for not buying one of these (over a comparable “proper” desktop)?
These types of machines certainly have their place, and if it meets your needs, go for it.
The big downside is going to be a lack of upgradability. Most of the core components will be soldered to the motherboard, so no CPU or GPU upgrades, and no replacements if something breaks. I know the one you linked was just an example, and not necessarily “the one,” but its on-board graphics are similar in power to a GTX 1650. Lots and lots of games available at that level, but you’ll be locked out of anything newer with no clear upgrade path later.
For reference, I own something similar, but even older, as a secondary machine. It’s fine for what it does. Just be aware of the limitations. There are ways to build a similar-powered full desktop for about the same price. At that point it’s a tradeoff: would you rather be able to upgrade later, or do you want the simplicity and small form factor (portability, aesthetics, etc)?