地元の洋服屋で服を買うと、どこで買ったかとかいくらの服かとか、そういうのはみんな知ってるのでつまらないそうです。
なので、こっち来た時は服を買いたい！とは妹傘の弁。
なんとなくわかりますね。

I hear it's boring when you buy clothing at local stores, as everyone knows where you bought it and how much you bought. So this was Kid Sis-gasa-speak for "I want to buy clothes when I come here!" Somehow, I understand.