In reply to GrendeI:
I've got an 18 year old Gore Tex (Berghaus Trango Extrem) that I still use as a spare, it (mostly[1]) doesn't leak, only thing I have had to do to it is (get my Mum to) replace the zip. I wore it near enough every day outside summer up to it being about 10 years old. Brilliant bit of kit, it will take a lot of convincing to get me to buy anything else.
I have another one that is about 6 years old (Berghaus Mera Peak) and it is bearing up similarly well, though these days I don't wear it quite as often as I have a windproof fleece which is good for daily wear.
[1] Except the cuffs which are quite heavily worn, and the classic Berghaus design issue that means the outer pockets all leak in very heavy rain (but did near enough from new). But that isn't a disaster as there's a large inside pocket.
Neil