As much as either wheelset may be in demand there is a point of pain for OE wheels. Branded wheels will always command a premium price, the OE wheels hit a price shelf then interest drops off dramatically. I went through it with my 21's, three deals slid by and it was ehhh....you can wait it out. Seems like the GTRs, 21's and possibly the turbines all fall into the same price window of 1,600-2k. Tires are motivational but do not really factor much into the sale for most buyers.