Thing is: You can get better hardware for $250. OpenWRT support for mikrotik devices is spotty, though, not many people care as the things already run Linux (with proprietary network stack and management interface looking, well, like an enterprise-grade router, not server). That is, the issue is not that they're locked down (they're not) but lack of interest in using custom firmware, these aren't dumbed-down html interface only types of machines but office endpoints from a company producing ISP-grade hardware.

Generally speaking having wifi is usually a good idea because smartphones and guests exist but connecting PCs via wifi is nuts. First of all, I'd have to buy a wifi card and sacrifice pcie lanes...

And lastly, a fun reminder: Once upon a time there was a German black hat, and he used wifi. The police already had evidence that he lived in a particular neighbourhood, but nothing specific enough to get a search warrant. So they went war-driving in the area, correlating spikes in (encrypted) wifi traffic with messages in a chat room where nefarious things were planned, until they figured out which house the traffic was coming from, then parked a bit nearby until they had statistical significance tighter than a fingerprint. They never had to get that search warrant once they presented the court with the data it issued an arrest warrant straight away and no degree of disk encryption could save the guy from a verdict.