I also got a free repair. Unfortunately that wasn't the end of my problems - the refurbished logic boards kept failing within a few weeks.
You've got a couple of options.
1) Sell it quick.
2) Put up with a potentially unreliable machine for a few months, and keep flinging it back at Apple. If the logic board fails three times Apple should replace it with a new rMBP.
I can't fault the customer service from the local Apple Store. It's just a shame the refurbished logic boards appear to be of poor quality. I'd have been very happy with a permanently fixed 2011 MBP.
Just one last question, what were you doing that made your logic boards fail within a few weeks?