Its not just young guys that are enamoured with Japan. (Although 25 can still be considered young)
My brother and I recently went over for a snow holiday and took our mum and younger sister along with us for the ride. We were only over there for 10 days, but by the end of it we didn't want to come back. My mum was nearly at crying point when we got on the plane, and I wasn't far behind. Since then, all my mum has wanted to do is go back, and we are already planning to go next year...
Even after only being there a short while, there are a few things I miss upon coming back...
The lack of Vending Machines....
Ability to get alcohol from 7-11, or another convenience store... and cheap...
The people... we got so used to people just being polite, that to come home and have a very rude yugoslav-australian (Not anything against anyone from the balkans, he just happened to be the first person I talked to off the plane, being a customs guy) treat you like an idiot, it wasn't a pleasant experience.
Cheap food.
There are probably more things as well, but I can't remember them at this time.
So I will plan on a way to go back.. I'll have to get better at my vocab and kanji reading, though.