I too am disappointed in the selection, but lets get a couple things out of the way first:
Ever since Nike got the NFL contract it seems like the quality of their products has gone down and the price has gone up, at least in my opinion. They make sure the shelves are stocked for NFL season before they think of anything else.
There were 3 different colored #13 jerseys produced last year, and all of them sold out. That is why you can't find any online. They even had a smaller batch printed after the Championship and those sold out in matter of days. However, none of these were authentic jerseys, they were all the replica/screen printed versions (more on this below).
If you ask Kyle why there isn't a bigger variety of jerseys available this will be the answer: "people don't buy them." I know this because I have asked him. Nike raised the cost of the authentic jerseys a couple years ago from $75 to $125. Nike also have a minimum order purchase of 600 units to have a batch made. Based on sales from previous seasons (at a lower price point) they decided it was not a good investment to have the authentics made. I would not have guessed this was an issue, but I don't think they would pass on something that would make money.
Basketball merchandise should be coming out pretty soon. My guess would be right around midnight madness. There should be much more merch available, considering we are regarded as a bball school. Kyle has made it known that he is working on a throwback Ollie jersey. and has also said the Olliewood shirts are coming back soon. They are not going to come out w/ a bunch of bball merch during the spring or summer, and have to sit on the stock until the season starts. Let's at least wait until bball season before we start complaining this stuff isn't available.
If there is something you really want that isn't available email him or find him on twitter. He is very receptive to good ideas.
All this being said I think they really dropped the ball w/ the Championship merchandise last year. Nothing produced was that great, and anything good went out of stock quickly. They said there would be 4 time champ merch made, but apparently the order was never placed.