only thing I'd say is it.seems a little strange they aren't stocking it as much as the online shop as it's pretty much the only point of revenue for bands these days along with touring.
Perhaps last year's vinyl reissues of "The Love of Hopeless Causes," "No Rest for the Wicked," and "Thunder and Consolation" brought in enough money that they don't need to release any more t-shirts for the time being? I'd be curious to know if they sell many CDs and vinyl records during their tours, when they do 50 or 60 concerts a year. I seem to recall that when a journalist asked Justin if sales of "Eight" were "good" in 2000, Justin replied, "Enough to fill the fridge!"
Whenever I go and see a band I like who are running their own affairs and don't have a big record label behind them I will always check out the merch and try and buy something
Likewise, when I go to see "indie" bands whose concerts I quite enjoyed, I like to buy one or more of their CDs. Recently at a festival, I bought all three CDs albums by Izo FitzRoy (a talented Soul artist), and I wanted to buy the latest CD by the band Yonaka, but incredibly, they had neither the CD nor the vinyl on their merch table! So I bought them a t-shirt (which was a bit expensive) with a design I don't like!

I'll always stretch my cash to see NMA (with all the subsequent costs that it involves!)
I know this situation. It's the cost of train/plane tickets and hotel rooms that often prevents us from seeing all the bands we love! It's very rare that the bands I really like come to play in the concert venues of my city (NMA only came to play in my city once...in 1995!)
a t-shirt with an uninteresting design? Sorry, too much...
Then there's the "Surrounded" t-shirt which I personally like (I've even bought it several times to offer to friends). I wouldn't be against a reprint of the "Radio sessions 83/84", "The love of hopeless causes", "Strange brotherhood", "Eight" and "High" t-shirts.