Not impressed. All these posters are relatively recent. If this guys had some classic or rare shit I would give him more credit. This is like looking at a pile of take out pizza boxes and saying "oh he must be a great lover of italian food."
Well... a well placed anime/manga related print or poster can look good. I have an End of Eva one sheet that was used in theaters in Japan (the all red ver), custom framed and appropriately placed in my office room. My girlfriend has a lush green Mononoke Hime teaser print in the bedroom. They both look great, and they go with the other art prints we have up, not to mention the general colors of the room. But when making your place look nice, less is usually more. (we rotate several poster/prints to keep the rooms both visually fresh and to enjoy our growing collection.. of both classic and pop art).
Well, I guess that it can look good, if placed correctly. Framed nicely, a print can look lovely. I just think it's tacky to have so many posters stuck up on the wall all at once.
Museams do that too, rotating pictures that is. That way the exibits always stay fresh.. plus sometimes they might need to do renevation work.