Responsive design as a service

Hi guys,

I'm currently toying with an idea that would make it super easy to gather design inspirations from various sites, regardless of screen size. There are already a few competitors in this space (ScreenshotAPI, 24Browser e.g.).

Basically, whenever I start making a landing page and find a few sites for inspiration, I find it super frustrating having to keep switching between different devices/screen sizes to see how they implemented the design. I would like to automate this process, letting people choose which devices they would like to see screenshots off and then generate that for the whole website.

Now, I would like to know what pain points (if any) you come across whenever you're looking for inspiration for a new site you're creating.

Question: What are your pain points when finding inspiration for a new site you're making?