I do this a lot, especially with Amazon and usually when there are price breaks. If you attempt to buy it but obviously don’t have the funds, you will get a notice about it and if you just keep switching your payment options you can usually keep the original price you “bought” it for even if the price has increased since your first purchase attempt. Not forever , but I have held onto prices for around a week or so. I did that a couple times last Black Friday because I knew the prices were going to go back up by the time I could actually purchase them.
You’re not really harming anyone by doing that so it doesn’t bother me to share that life hack with others.😊

