Just check coupons out (with price alert and history). What is the best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
500x 500x 500mm, Engraving Accuracy: + / -0.1mm, Nozzle diameter: 0.4mm, Frame material: Aluminum
Price history and price alert
Price history (for all/most countries) for CR-10S5 500x500x500mm 3D Printer [Fast-08] is here.
Price records source(s): Gearbest
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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)).