Facepalm: Apple’s reputation for charging ridiculously high prices for its products hasn’t been helped by the accessories for the Mac Pro and Pro Display XDR Monitor. In addition to charging $999 for the monitor’s stand and $199 for the VESA mount adaptor, the Mac Pro’s wheels cost $400. For that amount, you’d expect some pretty amazing wheels, but it seems they lack a basic feature: locks.   Apple unveiled the 2019 Mac Pro last June. It starts at $5,999, but those who want the top spe