oh they're ?
well I really don't know because usually re-issue of single/album does not tend to sell well the 1st time an artiste's material is released but of course there're exceptional cases
like I think when the late ZARD passed on , wasn't her material re-issued by her record label that sorta thing ?
since I don't listen to AKB48 , I can't really comment on this but if so , then HOLIDAYS IN THE SUN might be YUI's 1st album since FROM ME TO YOU not to debut at #1
then again you have to understand , it's her 1st album release in 2 1/2 years so imagine how much anticipation her fans are looking forward to it (I hope)
it's this one isn't it ? ->
http://www.cdjapan.co.jp/detailview.html?KEY=DFCL-1653