Walmart offers the La Crosse Technology Temperature and Humidity Comfort Meter for $9.98. (Amazon charges the same with free shipping for Prime members.) Opt for in-store pickup to dodge the $5.99 shipping charge. That's the lowest price we could find by $4. It features temperature and humidity readouts and a low battery indicator.
JBL offers its JBL Studio 580 Floorstanding Speaker in Black for $399.99 with free shipping. That's $50 under our March mention and the lowest price we've seen. (It's the best today by $400.) It can handle 25 to 200 watts and features a frequency response of 40Hz to 40kHz.