I used to LOVE cashmere and would buy 1 to 2 pieces at the big, annual knitwear sale at Bloomingdale's every year. They seemed to last forever and were so soft that I just wanted to cuddle myself ! LOL.
It became a real staple and an essential for me to have a grey, black and navy v neck cashmere sweater.
But over the last 5 years, as I try to replace things, I have found the quality has gone down across many brands. It is SO hard to find a quality cashmere that doesn't pill in 5 mins. So I am very interested in this thread.
My only comment is that if you are going to spend the money, it may help to have something that you won't get bored with and is an essential piece of your wardrobe. I don't bore easily and tended to have the same core pieces year after year, so some of my sweaters lasted 15 years ! No kidding. I did buy an asymmetrical Jolie black cashmere pullover long sweater...it is beautiful but doesn't wear as well as the stuff that I used to get.
I have mostly merino wool now from Smartwool and Icebreaker. They are not as soft but it doesn't bother me and I find it more "rugged" for my lifestyle. Though I would LOVE a couple of v neck cashmere sweaters....