I would say to pay attention to where the part actually comes from. My husband picked up a shift boot/knob set for his Jetta from eBay. Super cheap from China. But the plastic chrome ring around the top of the shift knob has chipped off/discolored leaving a pinkish plastic exposed and the chrome around the shift boot is peeling off too. The ring discolored very quickly too.
I bought a shift knob & boot from fixmyvw.com
I'm very happy with it. The original 5 speed disc on the top discolored and the chrome came off, I asked about getting a replacement and they send a new one out no charge.