They do sell shoes, although most have to be ordered.
I thought the video gait analysis I had done was excellent, but these days there are places who do it for free.
I think the first time I went, I had shoes, and a consultation and came away £200 poorer. But have had no pains at all since switching to the shoes he recommended and adjusting my running style after he pointed out my errors on the video playback.
So worth every penny at the time.
The shoes I had been sold by Run and Become in Cardiff the month before were completely opposite to what I needed - after all they just watch you from the front and the back running in the street. You really need a side view too. But I know loads of people are happy with the service they have there - it just wasn't right for me.