Songs never performed live

[Chibi_Venus]

I remembered a discussion about why kanariya was never performed live (conert/tour and unpublished performances), and I noticed some others that were never performed either.

o FRIEND
o Wishing
o As if...
o from your letter
o Introduction*
o P.S. II
o kanariya
o still alone
o taskinlude*
o everlasting dream
o Over
o neverending dream*
o sotsugyou shashin
o Liar
o HOPE or PAIN
o In The Corner
o criminal

* - Instrumentals

I didn't include the 2005 songs (so far alterna and Will weren't performed, but they're new) and I wasn't sure if most songs from MY STORY counted because they're kind of new (almost a year).

So, was it just because some of these songs weren't popular? I was just wondering what the deal is. lol