Not the same as in-store!!!

I bought a pair of 514s from a Levi's store last year, and they have served me well. When it came time to replace a different pair of jeans, I ordered through Amazon, thinking they were the same thing. Wrong. The fabric is significantly lighter, the brand tag on he back looked like a knockoff, and overall the jeans felt significantly cheaper in quality compared to what I already had. The fit was the same, so I presume they're real, but is Amazon selling the Wal-mart version of these jeans or something? I checked the Levi's store, and the ones in store right now are the same weight and thickness as the jeans I bought last year, so it's not a universal issue with Levi's, only with what Amazon is selling. And with sales, you can get pretty close to the Amazon price. $40 on Amazon for jeans that won't last six months, or $50 in-store for something that should last at least a few years (current jeans are a year and a half old, no problems with them yet). For me, it was a no brainier. I returned them.