It's hard to repair since you'd have to rebuild the engine. It all boils down to whether or not if you can live with it. The extra oil won't eat into your budget too much, but it will be an annoyance for sure.
Btw, AT or MT? An AT will have to be replaced far down the road when it starts to slip(worse if the fluid is burnt), where as a MT can last forever as long you drive it properly. You just have to replace the clutch as some point.