Good to know. I assumed they were lies: there's a lot of scumbaggery in sales, so it's perhaps a natural assumption.

No problem. Also, the shop wouldn't gain anything in the long run if they were telling lies. We measure conversion over multiple sales and that shop would see poorer performance for that message compared to our control group.

Some website are playing blurry lines games so much. They do use time / stock limited "flash sales" to trigger buying. Then relaunch a new flash sale a few minutes after. Most of the time you won't notice it, you're either busy looking at other stuff or just went off the web because you spent enough money. I even thought it was a page refresh bug until I understood the pattern.

Here is another one you can add that I have found works with sales that I make (although those are big ticket sales).

Attach some proof of what others payed in higher prices. As in "10 people paid $x for this last week".

Thanks! Will try that with one or two of our customers, shall I let you know our findings?

Definitely - startupdomainadvice@gmail.com

Pricing strategies are one of my specialties and I use them in negotiation almost every day.