I'm worried about it's vertically limited aspect ratio. How did you get used to it after the 42"? It just seems not tall enough to me and it's the only reason I haven't bought it.
Yes you may lose a little bit of height, but it is hardly noticeable because the massive horizontal space you gain completely engulfs the slightly smaller vertical space you lose. In terms of immersion in gaming, there is absolutely no contest between the 16:9 42" vs the 57" 32:9. The 57" 32:9 completely trumps the 42" for immersion. You have no idea what peripheral vision you are missing out on until you witness each of these displays side by side like I did when I had them both at the same time.
I can't wait until they make the 57" OLED version! But I would think we are years away from that unfortunately ;(