I understand where you're coming from here. If you're doing serious walking, some gear needs to be the best quality (boots, rucksack and waterproof in particular), however there's also items where cheap is perfectly acceptable and I think fleeces come under that heading. I have a Peter Storm fleece I bought from Millets about 20 years ago and has served its purpose admirably. Similarly, I don't see the need for expensive walking trousers, and have a great pair of Regatta trousers I bought a long time ago (can't remember exactly) in a sale in Ambleside.