Price history, coupons and price alert are available on this page. Let’s see what best price is ATM.
Nozzle diameter: 0.4mm, Product forming size: 310x 310x 410mm, Packing Contents: 1x 3D Printer, 1x Heated Printing bed, 1x 3D Printing Bed Glass, 1x Control Box, 1x PLA Filament, 1x 4GB SD Card, 1x 3 inch LCD Display, 1x Set of Assembling Tools, 1x Filament Holder, 1x Set of Accessories, 1x Power Adapter, 1x English User Manual
Aliexpress
I could not find it on Aliexpress. Click here to search by yourself.
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. I don’t think there is an active coupon right now – at least in my database.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): Wholesale20, bGpAnDacHeCk, Email5, 7d18f7, 13f142
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Check out price history chart (for all/most countries) for ADIMLab-gantry 3D Printer I3 Plus.
Price records source(s): Gearbest, 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)).