So users don’t have to open item page and then click on the ‘live preview’ button (in a new window).
I think many users (I for sure) browse live previews before reading the description of the item.
Envato frame on the top has the buy link anyway.
+1 I’d like to see that
Another idea, hovering over the item’s avatar (in list) shows a screenshot of the theme and not the theme image. Some themes have a promoting image which shows no where near to what the real theme looks like. Really annoying to have to open it first