I'm going to weigh in here and give my opinion for what it's worth...

Personally, I don't think it's worth purchasing the Japanese version for a large sum of money! If you are one of those people who are very particular and want everything in FLAC for the purpose of collecting, then go for it... But if you think you're going to get something magical, like this alternate album in perfect quality, then you might want to think again... Just like all of you, I went down this same road many years ago looking for that perfect FLAC of these songs and it's just not there... There is no clean version (no radio static) of "Nothing" in circulation...

Here is what's different between the two versions

1. There are only 3 songs that have alternate lyrics:

A. Have A Nice Day
B. I Want To Be Loved
C. Bells Of Freedom

Have A Nice Days has the most noticeable and worthy changes... The other two have very subtle changes. As a fan, it's worth collecting but nothing to get overly excited over. Bells Of Freedom has a different beginning and then it's just the same song. I Want To Be Loved just has a few things here and there...

2. Who Says with Keith Urban
Again worth collecting as a fan but Keith adds nothing to this song... Jon's vocals are so distinguished that when Keith sings his part, he brings the song down... Not taking anything away from Keith as an artist but Jon just happens to be a better vocalist within his delivery.

3. Nothing
Although I don't have the same excitement as other fans, I still get where they are coming from because this is an excellent song. Just like if this was the Soul Truth or Cadillac Man, of course you'd want the best quality. But like I stated above, the radio static is still there...

So in summary, as a fan, the goal is to get everything in the best quality you can but if you think you are getting a store ready version, its not happening... You might want to consider holding off and just find them on the internet because the few changes really aren't worth spending a large sum of money...