You can create price alert here, copy coupons and view price history. You probably want to know 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 coupon and price update (UTC):
, Light-source: high-quality filament（wavelength 405nm）, Z Axis Res.: 0.01mm, Net Weight: ~4.7kg, Printer Size: 180mm(L) *195mm(W) *367mm(H), , Layer Res.: 0.01 ~ 0.2mm, Rated Power: 30W, Printing Volume: 97mm(L) *54mm(W) *150mm(H), Printing Speed: 30mm/h, XY Res.: 0.1155mm, Physical Parameter, Technology: LCD-based SLA, Material: 405nm Photosensitive Resin
Banggood
Banggood warehouse is located in China. There is one great coupon!
Link: Banggood product page
1. ($168.00): 13f142
just apply this code in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): Email5, BGHALLOWEEN, 7d18f7, BGCZPTZ, BG0deeec
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – ANYCUBIC Photon ZERO 3D Printer [EU] ($-3)
Price history and price alert
Check out price history chart (for all/most countries) for ANYCUBIC Photon ZERO 3D Printer.
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)).