V-kei concerts sound like they'd be pretty visually interesting, i don't like crowds but i wouldn't consider a concert ticket 'spending money on someone else' versus your own experience/free time versus just the idol culture of paying for a hug/handshake/etc lol. Tho other than dressing up for work reading back on this idk if Iori's spent too much money for herself versus saving up completely to 'retire' or a future career/dream/education