Lowes has Iris smart plug for $31.53. I think there was a previous deal for $30. I was eyeing for a deal for some time. At this price, I will jump in.
AFAIK, this is the only device, in the market, that can act as both Zigbee and Z-wave repeater. That makes it unique. There are inexpensive Zigbee (example, Peanut) OR Z-wave (Monoprice) repeater / smart plug in the market, though.
BTW, SDers should know about "other" Lowes coupon. A 10% off coupon can lower down the price to $28.38.
This price is valid through 04/25/2018.