Lumi is determined to stop detouring and finally get to New Vegas. She stumbled upon the Gunrunners outside with the super expensive stuff and chat is trying to convince her to dump all her money on good gear.
EDIT: She sold a bunch of shit so she could afford the Anti-Material Rifle. Now she doesn't have enough for the entry fee to New Vegas, she has like 700 caps and you need 2k caps. She's going to be so mad.