My DD got given a little people zoo for her first birthday and is drawn to it like a magnet. She whines when she sees the box - we bought some more LP stuff half price in tesco last weekend for xmas and she whined when she saw it in the car.
She's not that keen on her wooden bricks and things though.
Kids love bright plastic tat! The price alone would sway me - tesco have the LP petting zoo and carwash half price at the mo so you could buy one of those as well as the train set and it would cost you less than the hamleys one.