It really depends what you want to do. If those things are things you can do at home, or Spain (beach, hotels, resorts) then don't bother, just no point as you'll have wasted an opportunity to experience some special things.
I've visited the Sates a couple of times but I've only managed to take in New York and New England. Spent a month working in New Hampshire. The whole area is highly recommended, so much to see and do.
On my list of must do's:
Three days in New York City.
Sunday afternoon chilling out in Central Park people watching
White Mountains, New Hampshire,
Provincetown, Cape Cod.
Go camping in Vermont
Spend some time on the beach
We had three weeks there, rented a big **** off people carrier (Chevrolet Voyager - first car I've seen with electric doors
), and just drove all over the place. Loved every minute of it. Fabulous people, fabulous scenery. Altogether great.
Having said all that, what we saw was not so different from places in Europe. Big cities, mountains, ocean etc. I have a hankering to see something we don't
have, and I've always wanted to go look at the great plains of the mid-west, the mile after mile of wheat fields. Just such a contrast to Europe.
When we took a three week holiday in Austraila two years ago, after a few days in Sydney, we decided to abandon the traditional tourist trip up or down the coast. We took our little camper van inland, Blue Mountains, Bathurst, Cowra, Hay, Waga Waga. My favourite place was West Wyalong, nothing more than a single main street, a railway/cattle loading ramp and er ........ that's it. Somehow we got more in touch with Australia than if we'd just bummed around on the Gold Coast jet skiing. All the Australians we met thought we were mad. They had a point.
We Have friends who live in St Petersbug, Florida and hopefully we will visit them next year. I'm sort of sheming to take a big long drive though Alabama, Mississippi and Louisiana. Maybe as far as Texas. Probably a completely different world, or at least that's what I'm hoping
So I think BDA has got it right, head for the Grand Canyon, Monument Valley and all that stuff. Memorable for sure. Something you won't get over here. New Mexico always looked interesting too.
Be careful of the distances and don't try and do too much. It's a very, very big place.