Yes, quality can become an excuse, but I also think that buying quality items (where items are needed) is a good foundation for the future even if it causes slightly lower savings rates now.
I say this because that is my personal preference. I recognize I could live in T-shirts from Goodwill and the rusty garden tools that barely work I inherited, but I prefer to spend the money on classic clothes that fit me, make me feel confident (starting the optimism cycle) as well as the home basics (Pyrex containers, etc.). I look at the thrift stores first, but the time and energy it would take me to find the diamond in the rough is not worth it to me.
Examples:
-I lived with a few rag tag storage containers, hitting up Goodwill every two weeks to see what they had. Then I "caved" and bought a set of Pyrex storage containers and mixing bowls. Result? I cook more, am more likely to eat leftovers for lunch the next day, and can take advantage of the bulk section in a nearby store. This clearly saved me more than the $40 start up cost.
-Home renovation: chose to pay more for the things that would matter in the long term - hardwood upstairs (and hence no vacuum cleaner), gas water heater (break even point = three years), a soapstone kitchen counter top (easy to clean, classic, inspires me to use the kitchen), and fix the alright, but would soon have problems plumbing while we were already re-wiring (70 year old wiring, safety hazard). This, augmented with free furniture, not fixing up the outside as much, doing a lot of the work ourselves, and salvaging items where ever possible, was also a good decision. Savings? Probably break even overall for the next 5 years but I plan on staying here/renting it for a looong time.
-Safety razor: Could I have bought used? Yes, but everything I read said that it was best to go with something new unless you were buying in person and knew how to evaluate the red flags. As neither of those applied to me, I got a Merkur with high reviews. It has already paid for itself in a matter of months (I had run out of razors anyway).
-Diva cup/cloth pads: you don't want to buy these used . . . . and are worth every penny. Not to mention I love sticking it to the man every month ;-)
My point in all of this is that if there are things in your life that need "stuff" to function and you don't already have a workable alternative, it is worth it to spend for quality. After checking second hand stores, and price checking/sale hunting online first . . . .