So you got 5 years out of it? That sounds decent.
I picked up an Icebreaker tank top w/ shelf bra and a jacket when I was NZ earlier this year. I couldn't resist the sales, and the exchange rate was in my favor. Also have two thin base layer tops that I acquired in last winter's post-Christmas splurge. I wear them all the time. So far, so good.
I will let you know in 5 years if any of these pieces are still holding up or not.