>>279905553
since not all of them fail it's a roll of the dice for them anyway. It's likely that 75% or greater of them don't get rma'd. Getting an extremely quick turnaround (day or two) on a controller that might work for 6 months to forever is fine by me. On the east coast I got mine back in 3 days. They pre-shipped it from ingram micro in IL.
If you buy an index full kit you'll sometimes get a new left controller and an old right controller since they tend to fail way less.