In my opinion, fabric is fabric, whether it came straight from the high $ fabric store, from a Walmart sheet, or from a yard sale or the thrift shop.
I've not seen any significant difference in how well fabric 'wore' just because of it's origin. Some embroidered muslin squares from the 1930s (ones my mom had done for her hope chest) that I put together in a quilt as a HS home ec project in the 1960s did wear out from constant use in the late 80s/early 90s. The edges of a GFG quilt we got as a wedding gift in the early 70s wore out about the same time for the same reason. Both were used constantly and put through the washer and dryer regularly for over 25 years. None of my clothes lasted that long!