This SBQ was suggested Kathryn and is:
How many needles do you use during a project? Have you ever loaded up a needle for every color? Do you use a new needle for every project or recycle your favorite needle?
I have tried multiple needles, but it doesn’t really do anything for me, except dump more needles on my floor. 
I don’t know that I have ever loaded a needle for every color. I tend to really go through needles, so if I touch one and then don’t use it for a while, that’s a bad thing. It’s more prone to tarnish that way than if I use if continuously.
I use a needle until the finish rots. 
As I think someone else already described, the surface gets pitted and rough. I throw them out when they get that way and grab a fresh one. I’m really impressed with the Permin needles that I’ve started carrying at OSL. You can’t beat the price (a packet of 25 for $6.00), the finish is really slick and smooth and they seem to last longer than any other needle for me so far. Love ’em!
I agree on those Permin needles, they do last longer than other generic needles before they tarnish, but nothing beats platinum needles
Jenna, your blog just ate half of my comment…
I’m glad you mentioned the needles you sell. I just took my first one out to use the other day and I am impressed with it. I tend to bend and snap needles at a rather alarming rate and after stitching for a full evening with this one, it wasn’t at all bent. That NEVER happens with me. It’s also a nice weight/thickness.
That said, I have never had a needle long enough for the finish to pit. LOL! If I don’t snap it, I lose it.
Hey Jenna:
I have so many needles, and they are a mess, and I use whatever I grab. Odd that I never really gave ‘organizing’ much thought until this SBQ.
What sizes are the Permin? and do they have the petite? I don’t know if I’ve ever used one. Or seen one. Are all 25 the same size?