Where are some fun and affordable vacation spots in the US?

We are in our 30′s.
Personally I love museums & sightseeing. My husband loves the outdoors but please no camping (not for me!). We are pretty big partiers and like places with a fun outdoor atmosphere where we can relax and drink.

We just got back from Vegas so please dont suggest that. And we’ve been on a cruise as well. So any suggestions other than a cruise and Vegas would be great!!

Remember please keep AFFORDABLE IN MIND! Any suggestions?