Thanks I will try to grab one on prime day.
You might also want to use a price tracking site (say camel three times fast).
First find the unit you like, copy and paste the Amazon full URL into the tracker. It will show a graph of the product's price history.
You can also sign up (free) and they will send an email when it falls below your purchase threshold. If you do go that way, act fast as the low price window can be very short.
I purchased the 900 Watt WI-FI Anova (now discontinued) for $75, and the average price was $127.
The updated version 1000 Watt price history:
Current $173.99 Mar 07, 2020
Highest $199.99 Dec 06, 2019
Lowest $109.99 Dec 25, 2019
Average + $161.86