I thought I'd share my experience as it may be helpful to others, especially those selling their own products. I am a clickbank vendor of several products. My best performing one is a package of a health guide (for a specific condition) with 3 months of free private, unlimited consultations with a nutritionist (that's my real 'offline' job). Therefore, it is a very high quality offer. Initially, my price was set at $39 and the product was converting fairly well. About a year ago, I decided to try split testing the product at $47; I thought that it'll probably convert slightly less, but due to the higher price, the earnings would still be higher even if sales might be slightly less. After 15 days of testing (and over 20,000 visits), I was shocked with the results - the $47 one actually converted slightly better (+2%)!!! Needless to say, I adopted this price. Fast-forward to last month, after a full year of amazing earnings, my sales for this product dropped dramatically as of the start of the US shutdown. I waited for a few days, and the sales were still stagnant. Therefore, I decided to split test prices again - $47 vs $37 After 5 days of split-testing, I am again shocked with the results - the $37 one is converting at 560% better than the $47 one!!! Bottom line is, just because you found the best converting version 6 months ago, this doesn't mean that that version will forever outperform the others. As the market and competition changes, so will visitor behaviour, preferences and purchasing power. Make sure you are always split-testing!!