Talk:RR3 Wiki:Upgrades Strategy For 100% Completion/@comment-2003:DD:23CB:F022:C2E:603:16C6:512B-20170909234315/@comment-26829117-20170909234602

Because you have to fully upgrade the FXX K for Italian Prime so the cost is credited there. There is no additional cost for entering the Exclusive Series so it is profitable. That's why it's coloured blue (duplicate strategy).