In my opinion, there are not enough LEGO stores around the United States. With that being said, new stores should open in the following locations: 

1. American Dream Meadowlands, East Rutherford, NJ
2. Anchorage 5th Avenue Mall, Anchorage, AK
3. The Mall at Short Hills, Millburn, NJ
4. Southdale Center, Edina, MN
5. Capital City Mall, Camp Hill, PA
6. The Mall in Columbia, Columbia, MD
7. Westfield Wheaton, Wheaton, MD
8. MacArthur Center, Norfolk, VA
9. Valley View Mall, Roanoke, VA
10. The Maine Mall, South Portland, ME
11. Stamford Town Center, Stamford, CT
12. Walden Galleria, Buffalo, NY
13. St Louis Galleria, Richmond Heights, MO
14. Costal Grand Mall, Myrtle Beach, SC
15. The Mall at Green Hills, Nashville, TN
16. Pheasant Lane Mall, Nashua, NH
17. Boise Town Square, Boise, ID
18. Meadowood Mall, Reno, NV
19. Mall of Georgia, Buford, GA
20. Gardens Mall, Palm Beach Gardens, FL
21. Mall of Louisiana, Baton Rouge, LA
22. Twelve Oaks Mall, Novi, MI
23. Westfield Montgomery, Bethesda, MD
24. West Towne Mall, Madison, WI
25. Burnsville Center, Burnsville, MN
26. Apache Mall, Rochester, MN
27. Cherry Creek Mall, Denver, CO
28. Fashion District Philadelphia, Philadelphia, PA
29. Stonewood Mall, Downey, CA
30. Lenox Square Mall, Atlanta, GA
31. The SoNo Collection, South Norwalk, CT
32. Walt Whitman Mall, Huntington Station, NY
33. Connecticut Post Mall, Milford, CT
34. South County Center, Mehlville, MO