[ninefathom]

raises hand

In the same vein as others have stated, the airwaves are just getting too blasted crowded. In all but the most rural areas, even the 5GHz band in the United States is starting to get quite noisy, and I find the constant frequency hopping and "ghost in the machine" network behaviors on WiFi to be much more vexing than simply running a Cat 5e cable- even if I'm terminating it myself.

Edit: directly to OP's observation, bandwidth is not so much of a concern to me as are things like wildly-fluctuating bandwidth and sporadic dissociations.