In what way? It had significantly higher sales than CoH until third quarter 2008. In some quarters nearly 3x the sales.
As for the "Other" line they did acquire Ntreev for a reason. You tend not to buy a company that doesn't have a good cash flow. As for those games, after checking out screen shots, I starting to see a pattern with them and B&S. Very anime fantasy loli girl character design.
Edit: you can't see how successful a cash item shop with numerous P2W options in a golf/rpg game?
Ah, didn't realize they only acquired Ntreev in 2011. When I noticed it on the wikipedia article with such a similar name, I thought they'd held it for a lot longer. So yes, it makes more sense now, even if it does enforce the Korean gamer stereotype (anything with anime girls in and they're all over it)
As for Guild Wars, I thought it would be above the 25000 line more regularly and occasionally challenging Lineage. Hell, I thought it would have been more consistent rather then jumping up and down as it did before settling only slightly above and then dropping under CoH. They have just sunk masses into it's sequel, after all, so I did think it had been more of a run away success then CoH was.
I'm going out on a limb here, but I'm guessing if Guild Wars didn't have 3 expansions in fairly quick succession (2 in 2006 and a third in 2007 and a forth in 2010), then it would have dropped under CoH and likely stayed there. Except for City of Villians release, CoH has remained surprisingly consistent. Hell, it shows how much NCsoft is focused on the short term (something it shares with all major publishers these days) as they put a huge amount into Guild Wars 2 after it's successor boasted at least over a million accounts at one stage (that was in 2006, haven't been able to find any real numbers yet) yet never significantly outperformed CoH for long, an under advertised niche game with a subscription model and fewer players.
That's just my observations of it and they may be wrong. Time will tell if GW2 follows a similar pattern, but being a pay then free game, it's probably to be expected.