Just that really.
I'm quite tight careful with money.
Invested in 12 pairs of super-comfy M&S knickers last year and 4 of them have developed holes where some seams meet - it's the same place on all of them so obviously a manufacturing flaw.
I wash them on a fairly low temp with other soft things, hang them to dry, and am not doing any strenuous activity in them.
AIBU to expect them to last more than a year? 😁