have a peek

I'm assuming you're playing Sims 4 given your posting history, so I'm guessing your suggestion is for the Sims 4 worlds as the section is for Sims 3 Worlds. If it is Sims 4 you're doing a poll on, then you might want to post over there or ask EA_Mai, EA_Rtas or EA_Joz to move this to the proper place...?

There kind of already is. Its not perfect, but you can easily checkout some of the screenshots of the expansion pack or store world and that will give you at least somewhat of a decent preview of the world before you purchase.

@Damienf519 Excellent! bilibili or Youtube has a lot resource