Yeah. It is a great ending in the happy go lucky sense. Though I'm personally not a fan of it. Funny since I usually like 'happy endings'.
Though it has nothing to do with it being happy as it does with who he ends up with. [spoilers! Highlight to read]
Haruka Shitow was shown at first as a kickass taken no prisoner independent kind of woman. And, I was a semi-supporter of her at first. But then, she degraded into a whiny "I can't live without him! WAHHHHHHHHHH!" Kind of woman. I mean, what the hell?![/spoilers] Given my love of alternate endings/pairings/etc, I'd just love to see fics that explored other avenues. Of course, I'm also not surprised that there aren't a lot of them out there in the first place. -_-
Not to mention, size of a fandom also helps too. I mean, does anyone here think that Naruto fandom would be as big as it is if it wasn't due to its massive popularity here and elsewhere? Granted, quality of most of said fics are non-existant in general, but you never have to worry about there being a darth of fics there either. <_<