I've got no problem with Lands End, although some of the best shirts lurking in thrifts are the old LL Bean made in Canada flannel and chamois cloth button downs. I've picked up several in my size over the years.
High end denium doesn't work for middle adged guys with a beer gut. Plus I wear a suit 5 days a week for work so I'm happy going the complete opposite which is shorts/sweats depending on the weather. Now i do like the nicer Nike and Under Armor gear so i dont look like a total slob.