Hello, I’m not a sneaker aficionado and typically only buy 1-2 pairs per year for work, exercise, travel, etc. I’ve recently fallen in love with the NB 327s. I had no idea they were so popular. The color I want (black/white/gum) are extremely hard to find and quite rare from what I’ve read. I have seen them on various sites where I can bid on them but wasn’t sure how reliable these sites were?? Any advice would be greatly appreciated. Thank you!