I have had my collection of hand sewing needles for years and I think some of them are older than me because I inherited some from Great Aunt Margaret's sewing box.
It's time to get new, sharper hand sewing needles. Funny, I never thought of them getting dull like a machine needle does.
I just purchased a large variety of hand sewing needles from Amazon.com including some self threading needles. Amazon.com carries a nice selection of brands and I ended up getting several different sets, but the one I'm most happy about is the John James 100 needle assortment.