How many extra gigs on iPhone?

I'm getting an iPhone 5 for Christmas and am not sure how much space I will need. On my 4th gen iPod touch I'm using 25 gigs. I was considering getting a 32 gig iPhone, but that only leaves 7gigs to grow. Is that enough? Does storing contacts and photos take up a lot of space? Should I opt for the 64 gig instead?

What are your opinions?

16 is enough, trust me. But, if you are one of those people that have alot of games, music, photos, videos, etc. Then go for the 32 GB. But, stop there. Plus, the 32 GB is $300 and if you got the 64 it would be $400