Old Town Scottsdale is a lively city in the middle of the dessert. It is perfect for enjoying yourself with great food and drinks after a day of outdoor activities taking advantage of Arizona nature (horseback riding, rock climbing, hiking, etc.). As a foodie, I enjoyed walking around and seeing a variety of restaurant (definitely try The Mission!) Everything is walking distance so after a meal you can stop by some bars in the area. There is also a large shopping mall with chain stores as well as boutique stores to get some unique Scottsdale-only items!
TIP: Some hotels in the Scottsdale area offer free transportation to and from Scottsdale (make sure you inquire!).