>>6207348The creative brick boxes are good basic sets, and you should probably get at least one. However, you'll find that the meat of modern Lego building is more in the flat studded plates and the usage of sideways building rather than the classic bricks.
You'll find that any Creator set is a good way to go. And we do mean any -- there are just as many ways to build with a 5$ Creator set as there are the bigger ones.
Serious Play is not a theme for collectors and those who want to play with their bricks in their own time. If you're the boss of an office and want a fun way to brings employees together while fostering creativity, then be my guest. Otherwise, forget it.