<<When I used to do alterations as a business I had so many people bringing me expensive new clothing that they wore once and it fell apart. I did a lot of repair and reinforcing. I prefer used clothing that has already done anything it may do --shrinking, ripping, etc. No surprises later.>>
I hear that. I have a linen skirt that I bought from Ann Taylor Loft, and while it's a lovely skirt, and cut in a weird sort of way, partially on the bias (this wastes a ton of fabric), that makes it swing and flow like a dream, after the first time I wore it, the seams all stressed--you know, where you can see the actual thread because the seam is gaping. They serged the seam, but the stitch setting they used was too long, thus why it pulled apart. I still need to put it through my machine and correct it.
But, gosh, clothes I make don't do that! I put a tight, fine serge on all of my edges, then sew the pieces together on a regular machine with a fine stitch. I have learned that I need to triple-stitch the crotch of pants, but of my dresses, none has ever come apart on me, no matter what fabric or how tightly they are fitted.
Home-made clothing is easier to repair and alter, I think, than commercial stuff, which is why I feel like I can get more wear out of stuff I make than stuff I buy.
I'm a linen-fiend because here in TN the humidity can be just unbearable. Linen is (at least was before they came out with tencel and bamboo--not sure about them) the most absorbant of all the natural materials. So when it sucks the sweat off of you, that not only helps cool you down faster, but it also dissipates sweat so well that you don't often have dark, sweaty spots on your clothing. My husband wears a quilted linen coat (w/ 100% cotton batting) under his armor when he fights, and he never looks anywhere near as sweaty in it as the other fighters do. In fact, I can't recall seeing that he's ever sweated through it, whereas most guys peel off a shirt that looks like they took a bath in it. He has a shirt made of cotton duck that he also can wear to fight in, and he's actually stood there, looking between it and the quilted coat trying to decide which one was cooler; despite the bulk, the coat is actually more breathable because the cotton duck is very tightly woven. He does visibly sweat a lot in it.