First of all: I know this is a common complaint, and yes, it is short, but hey, the original one and Resident Evil 2 weren't that much longer, either, so I don't really see a problem with this. It's a fun return to a classic, but at the same time it manages to stay fresh and even enhance the 1999 version with some new directions.
Granted, it might not be as surprising as the RE2 Remake, and uses basically the same survival horror formula, but I think fans like myself will love it. There's horror, action, an exciting story, characters to cheer for, and a badass enemy following you around - pure, authentic RE experience!
Oh, and for the price you also get an asymmetrical-multiplayer mode with Resident Evil Resistance, so that's cool, I guess (I admit I haven't played it yet).