Seems like I've noticed in the last few months that 7.0s are next to impossible to find, 3.0s are hard to find except maybe in size 6 or 7 - even on Nike's site - although 5.0s seem to be easily available still. Many websites I see that advertise Nike Frees are often "out of stock" or only have version 1 or 2. Yes, there are exceptions if you look hard enough, but common sizes may not be available in the model you prefer, or in any model for that matter. Forget about your first choice of color for the most part. Or you can get your color choice from NikeID for an extra $25 ($110 total + S&H), but only for 5.0s. All good reasons to run more and more barefooted - I'm now doing about half my total mileage BF, & slowly increasing that.
I have new 3.0s - of course I couldn't find my exact size 12's or the color I liked - with about 50 miles on them, but still can't figure out if I like them as much as my 5.0s (which I love) - maybe after a couple of long runs in them...
My impression is that Nike doesn't see much/any profitability in 7.0s and 3.0s and hasn't made any for awhile - but will keep offering 5.0s for now. A "contact us" inquiry might result in something like the following response: "We received your inquiry and are pleased to learn that you are interested in our products. Rest assured that we will continue to develop our footwear products to meet the many varied demands of our customers. Feel free to contact us with any other questions or comments that you may have...".
OK - Rant over, gotta run
"I can do 440 in 220" Half Fanatic #846 "90% of running is half mental" I ran half of my last race on my left foot
Creator of RunForth | @robraux | shodless.com