Well, Barnes and Noble seems to be in a giving mood today. The company revealed earlier this morning that eager customers can nab themselves a 16GB Nook Tablet for $199 – $50 off its original price. Meanwhile, the 8GB Nook Tablet now goes for $179 (down from $199), and aging Nook Color can how be had for the relatively low price of $149.As for why Barnes and Noble has suddenly decided to slash prices – well, there are a few reasons why the move makes plenty of sense.