The best kiters I kite with (Happy, Mewitt and Zac) only have one kite.
AND, Happy could have as many as he wants for zip....
Don't think for one minute that you'll appreciate the finer points of all of the kites available or that there is a kite out there that will do it all.
Grab one kite, and the C4 is a very good kite, and just learn how to use it

Oh, and I forgot to mention, they all only have one board too......