Was $10 for most footlongs last I checked, which was a week ago when I bought one, which I did because I don't understand this idea that Subway apparently sucks. Maybe the American version sucks, but I don't know what's meant to be so bad about the ones I've been to. It's pretty basic ingredients, so I don't know at what stage they're apparently doing something wrong. It's not like they're using powdered meat or choko instead of carrot. For about the same price you can get a Sumo Salad wrap, which is also great and has better options (e.g. chicken, bacon & avocado), but is quite a bit smaller.
Related, I had a panini the other day that was both the best and most expensive I've bought. $19, but worth it.