Quality comes first. WIth that said, I have yet to see quality replicas. I will NEVER EVER buy one. I have seen cheaper non-designer handbags and even purchased a couple that look nice. If you want quality go for quality regardless of the brand name/designer. If you want the prestige, luxury and quality of a designer handbag, save the money and pay for authentic only.
I have a couple of LV's, Fendi and Pradas, owned them for several years, wear them day in and day out and still have to find a rip, tear, seam coming apart, etc. And even if I did, I find comfort knowing I can get it repaired/warrantied for free. (I would like to know where you can get a warrantied repair guaranteed for life replica...)