That was definitely my second choice (people around here do "photo walls", I've seen on facebook anyway. Props, silly poses, blank wall background but no booth. I was okay with that but once I finalized my budget and realized I had enough to get the booth, I wanted that!
The problem around here is that VERY few places have them. The one I'm seriously considering at the moment is out of Philly (hour and a half from here). There's no additional charge for the travel. Close by I found 2, one I've seen in person (it's hideous and takes terrible dark pictures, ew) and the other was $1,200+. A little further out, I emailed 3 places and only heard back from this one in Philly. I left 2 messages and an email with a place in Baltimore that I know does my venue (I've seen it there!) and haven't gotten a call or email back in several weeks.