$100 for a 128GB SATA II drive with performance comparable to Sandforce's SATA II controller is a steal. while i'm sure OWC deserves credit for how much they test their rebranded SSDs, the price premium over Apple's certified part is a waste.
I'm sure all companies rebrand their SSDs except Samsung, Crucial, Intel, etc. since they manufacture their own chips. The rest (OWC/OCZ/etc) use Micron/Intel/etc. chips.
But nonetheless, the performance may be similar but what about longevity of the drive?