I'm a fan of wood coasters so we wanted to get to those parks which have a wood coaster first.  
  
If we had an extra day in Tokyo I would add DisneySea to the itinerary but I had other things planned that my fiance is interested in (Ghibli Museum, Himeji Castle, Mount Koya, shopping, etc.). I would love to go to a Disney park but don't know how I can fit it in.  
  
I guess this would go under the category "first world problems"    
  
To give you an idea, here's our itinerary: 
  
Day 1: 
- Arrive in Tokyo 
- Sightseeing & Shopping in Shibuya District 
  
Day 2: 
- Tobu Zoo Park 
- Hanayashiki Amusement Park 
- Sightseeing & Shopping in Asakusa District 
- Tokyo Skytree 
  
Day 3: 
- Tokyo Imperial Palace 
- Studio Ghibli Museum 
- Shopping in Akihabara  
- Visit Godzilla Statue in Ginza district (I'm a kaiji movie fan) 
  
Day 4: 
- Fuji Q 
  
Day 5: 
- Sightseeing in Kamakura (Temples & Buddha Statue) 
- Ramen Museum in Yokohama 
  
Day 6: 
- Sightseeing in Enoshima (Shrines, Beach Day, Love Bell, Caves) 
  
Day 7:  
- Sightseeing and stay at Mt Koya 
  
Day 8: 
- Visit Tama the cat at Kishi Station (my fiance's a cat lover) 
- Visit Wakayama Castle 
  
Day 9: 
- Sightseeing in Kyoto 
  
Day 10: 
- Sightseeing in Kyoto 
  
Day 11: 
- Nagashima Spa Land 
  
Day 12: 
- Himeji Castle 
- Hirakata Park 
  
Day 13: 
- Return to Tokyo & Fly Home