I have just checked coupons. The lowest price I could get is 503.99 USD for AlgoLaser Alpha 22W Diode Laser Engraver 400mm/s [EU] (in Banggood). This is European warehouse! You can create price alert here, copy coupons and view price history. You probably want to know what is the best price?
Latest coupon code price check (UTC time):
Banggood (503.99 USD)
Banggood warehouse is located in Europe 
. Isn’t it too expensive? I can’t tell you if this price is good – not enough records in my database, so I won’t judge. You can use 2 active coupon codes for this product!
Link: Banggood product page
Price without coupon: 843.99 USD
Coupon (503.99 USD): BGREUPALAP
Coupon (776.47 USD): BGESJY8
(CouponsFromChina.com tip: put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
There were country-specific coupon codes published on Couponsfromchina social channels and price alerts. Coupon price may vary by country, because there’re different VAT rates, shipping cost etc. There is a chance that some latest coupons are still working:
Coupon (19.6.2024, $480.99): BG292ba2
Item: AlgoLaser Alpha 22W Diode Laser Engraver 400mm/s [EU]
Countries: Spain
Aliexpress
Here are coupons that you can use.
Price history and price alert
There is only one database record (it was for 503.99 USD), so you can’t see price history chart.
You can set price alert (for Banggood).