When I was updating this page, then coupon price was $139.99 for Raspberry Pi 5 4G 8GB RAM Development Board Pi5 (in Banggood). Just check coupons out (with price alert and history). What is best price?
Latest price update (UTC time):
Raspberry Pi 5 4G 8GB RAM Development Board Raspberry Pi5 Motherboard Artificial Intelligence Programming Learning PCIe 2.0 Interface – 8GB, Raspberry Pi 5 4G 8GB RAM Development Board Raspberry Pi5 Motherboard Artificial Intelligence Programming Learning PCIe 2.0 Interface – 8GB
Banggood ($139.99)
Banggood warehouse is located in China. I can’t find any active coupons for this product in Banggood. Low/high price? This price is higher than average price ($105.84) for this item.
Link: Banggood product page
Price: $139.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGESJY8, BGALL8
(I don’t think these’re gonna work, but you can try ’em out anyway)
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Do you need price history chart (for all/most countries) for Raspberry Pi 5 4G 8GB RAM Development Board Pi5? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).