Zion's or Seattle?

Okay, so I am throwing together a pro's and con's list. Bob and my anniversary is the first week of August and we are trying to decide where to go. Here is what I have so far...

Seattle Pro's:

- We haven't ever been together. (and when I went we only stayed for a day, and I didn't even get to see Pike's Street Market

- Cheap plane tickets

- Our friends (that we haven't seen in what feels like forever) live there

- Bob's Aunt Janey & family live close by (who are so so fun to hang out with)

- Bob's sister Donna lives out there, and we haven't seen her since our open house two years ago!

- Bob's parents live three hours from there and might be able to sneak out to meet us and hang out.

Seattle Con's:

- Should we save the money we would spend there?

- Hotel prices are kind of steep in the city, and out of the city we would have to rent a car, which spells out e-x-p-e-n-s-i-v-e either way.

- The only hotel that we might be able to afford is probably haunted.

- I would have to take off more time from work than if we went to Zion's

Zion's Pro's:

- It would be a cheap and easy

- Bob has never been

- Road trips are fun and chill

- Would only have to take one day off work

Zion's Con's:

- gas prices suck

- it is going to be blasted hot there

- gets busy there, and we might have trouble finding a good place to camp

Okay, I am finished listing for right now. Any suggestions??