There are two stores that manufacturer the same modules. Often the prices will differ between the two so you're best off comparing which one is less expensive. CDSNET
Same board, 2c less right now. It is too bad they no longer do their insane, I have no idea why they were so low, price sales anymore. Happened the same time as an EBates 10% back Not that I need any more of their products. I have way too many modules from them already (100s), but 75% off was hard to pass up. items quantities were limited but they seem to reset the sale so often I just placed a ton of orders whenever it let me. Many NRF52832 modules were acquired this way.
but if your already shopping AliExpress, I hope you're using eBates on top of that.
USA eBates (note, I use this from Canada if greater cashback before or after exchange. ie, both are 3% right now, but USD>CAD): http://bit.ly/eBatesDotCom
Canada eBates: http://bit.ly/eBatesDotCa
There are often 10% back offered.