Intel enthusiasts who want more processing power than the average builder have probably looked a little into the 7th gen Kaby Lake-X CPUs. These require the slightly pricier X299 motherboard (~$50+ more than the Z270 series) but with a new coupon at Jet prices are coming down quite a bit. The Core i7-7740X is down to $307 at Jet after coupon - that's cheaper than the $340 most retailers are charging for the slower i7-7700K.
This is a companion discussion topic for the original entry at https://level1techs.com/article/deals-kaby-lake-x-coupon-plus-newest-pc-games-summer-sale