Any question answered...

Is it better to purchase:

A) a succession of £1-£2 ikea frying pans and dispose of them when the non-stick wear out.

B) buy a £15-£20 "quality" frying pan with a lifetime non-stick warranty.

Depends if you are bit special like my older daughter or not (she'd just casually fry a bit of bacon using a fork).
An expensive proper Tefal frying pan will last forever, as long as you take care of it.
Use a soft plastic or wooden utensils.
Cheap pans are not worth the money. Shit will stick to them.