I think we should. Our current ones are about 25 years old from M&S, cost about £70 for the set so I'm more than happy that we've had our money's worth from them. The bases of the pans have corroded leaving razor sharp edges on the bottom. Probably 25 years of being put through the dishwasher. I've tried to attach a picture.
We can very easily afford new pans, this is not a question of doing without something else in order to get them. DH is adamant that as they are still functional we should keep them and just file off the sharp edges. He thinks that buying new ones would be a waste of money.
So WIBU to buy new ones? He's so sure he's right that he told me to post this 