Officially, the required lifetime for a USB type A connector is a disturbingly-low 1500 insertion cycles. I expect present-day connectors to greatly outlast this in practice, of course.
The Wikipedia article I found, probably the same one you found, only specifies male connector cycles "The lifetime of a USB-A male connector is approximately 1,500 connect/disconnect cycles." I was more concerned about the receptacle, which I can't seem to find info on. I wouldn't care to lose a thumb drive so much, but a port would be horrible.
Regretfully, "connector" is used generically in the USB standard to refer to both the plug and receptacle. Type-A "standard durability" connectors, plug and receptacle, are specced for 1,500 cycles minimum. 5,000 for "high durability". The only type specced for more is the Micro connector, at 10,000 cycles.
See section "5.7.1.3 Durability or Insertion/Extraction Cycles (EIA 364-09)" of the USB 3.0 standard. I'm sure it's in 2.0, too, but the section number may be different.
