I got one for mum, it was around £1,400 and I bought it from HSL. They came to the house with a few models to try out, which was very helpful. And there was no pressure.
Because the chair was quite expensive, and because I knew mum would probably not be around for much longer, I chose a nice plain beige, to blend in with the lounge! It still looks good, so I will get use out of it now she's gone. I found that even though mum only had about a year's use of it, it was worth every penny, especially the riser function. She was still able to stand and weight bear after the walking went (after a series of strokes) but the riser function enabled us to get her in a better position to stand using the rotunda stand and transfer aid. It was also useful to recline her a little and put her legs up. As well as being a comfy position in which she could doze, it also meant I could walk away, knowing she was unable to move! A few times when she dozed off I even dashed out to collect meds from the surgery, as I knew she could not move (physically and mentally unable to do so herself), though of course I would not recommend this to anyone.
It's a bit sad looking at it now, but it doesn't look like a chair for an elderly person, it looks like a nice, comfy recliner! I know some people have been able to get them via the NHS, even specially made to size, but I suspect, like everything in this game, it depends on where you live.