Road runner sports is taking pre-orders on the multicolor flyknits (lunar, racers, and trainers). If you sign up for vip(1.99) you get $15 off and if you use code CX13N165 you get another $15 off. I grabbed a pair of racers and trainers myself.
I think you will be fine. It's not like some really crazy piece that you need the right wardrobe for. Yes it looks nice with trousers but I believe it would work with some jeans and your BN sneakers as well. Would be gone if it were a 5. Do it!!