It's your money mate buy whatever
Just from my point of view it's a bit daft to pay more for a Z87 mobo with a non-k chip to be honest.
Kept the CPU the same as the K series is an extra £50 and at this stage I don't plan on OCing. Happy to keep mo-bo as it looks a beast in black and gives me the scope to change CPU at a later stage.
Don`t see what`s daft about that. He`s giving himself the option to upgrade in the future.