seriously there aren't many reasons why you SHOULDN'T.
blockland is a great game, the idea of only being give so many bricks can be a real annoyance. getting the full game gives yu loads more fun. you can build anything you ever dreamed of and play online.
you may say its too expensive but 20 dollars isn't much. and if you live in Britain its then only 10 pounds (at the moment, the $-£ exchange rate will vary this)
i hope you get the full version of blockland and enjoy.
Blockland - That game where you build stuff