I'm not going to buy an "expensive" upscaler, but I'd rather use the real consoles. I actually run into emulation errors with games I want to play on a semi-regular basis. I don't think that it's unreasonable to think about buying a scaler, even if it's unreasonable to buy this one.
It would be nice if someone would kick out a television with a fancy scaler built in. AQUOS and Bravia televisions (among others... I have an older example of the former, just barely pre-LED-backlight) have scalers which provide pretty good results for video sources at typical resolutions while also adding minimal latency, which is their primary appeal as compared to other lines — especially since the competition caught up in the black level department. But someone like Vizio (which is commonly favored by gamers due to sharp, clean scaling, if a bit jaggy at times) might consider offering some models with a seriously upgraded scaler and offering them to gamers as a means of improving their old-school gaming experience. Even people who don't own classic consoles, or who keep them in a box in their closet, might consider spending some extra money on such a feature even if they wind up never actually using it.
Not me, but some people