Quote from TaoPaiPai
If i like naruto, bleach, and one piece, why in gods name would/should i bother with translating something else?
That's the best explanation a group can give, in my opinion.
Even if each series was only done by one scanlation group, there would still be lots of series that never get done for the same reason they're not being done now - scanlators don't like them enough to do them. Yeah, it's a shame some series are neglected, but they're being neglected for a very simple reason - no one capable of scanlating them wants to do so. So they'll continue to be neglected until current scanlators start liking them (unlikely), or until new scanlators come along who like them (possible, but still unlikely), or until someone who likes them becomes a scanlator specifically to see them scanlated (counter-intuitive as it may be, this is the most likely).
Ending the duplicate releases and the speed races won't have any effect on the unpopular unscanlated series. Scanlators would just find other popular series to feed the masses, while the unpopular series continue to collect dust. You might think they're wasting their time now by doing duplicate releases, but they would probably consider it a waste of time to even bother with the unpopular project you wish they were working on. Remember, the only reward is praise from fans and the personal enjoyment you get out of scanlating that project. With an unpopular project you don't personally like, you're getting nothing. Not only do you get no reward, you're suffering through hours and days on a project you personally dislike and you're doing it for nothing. Why would anyone aside from a few do-gooders and masochists suffer for nothing when instead they could be working on something they enjoy and receiving the gratitude of the masses? It's just not reasonable to expect that.