Maybe off topic but probably an interesting point...
This is sort of off topic but maybe tangentially relevant so I'll share.
I sell these 20-40 page pdf documents that amount to do-it-yourself instructions about how to form an LLC or corporation.
Initially, this was really just a hobby thing so I mocked up a cover myself, trying, er, to copy what a best-selling business book did. It was pretty horrendous, but it might make sense to google on redtechpress and see just what my terrible artistic skills produced.
One day, about six months ago, I was talking to the Philippine designer who does my web site and she offered to redo my covers so they have more pizazz, look more professional, etc. (You can click on one of the links below to poke around and see what the covers look like now if you want.)
Here's the reason I share this. After puttering along for month and months, almost overnight, my sales doubled. Like until one Monday--the day before I used the new covers--I was selling X units a day. And then by Thursday, and every day since, I averaged 2X a day.
This experience, obviously, maybe isn't definitive. Maybe something else happened. But my takeaway from my "better product images" experience is that the aesthetics of the site--and particularly pictures of the products you and I sell--are really, really, really, really important.
And you know what's really sad about this? Getting new cover images cost me $100. That's what the designer charged me. I made that back almost instantly...
Steve Nelson, Publisher, www dot llcsexplained dot com and www dot fasteasyincorporationkits dot com.