Well, the indicators may be gone but afaik I still cannot waltz into my local BA ATO and buy an xONEx ex-IST for ex-IST prices. Since BA/IST can't Fedex paper tickets (which I actually prefer over e-tickets) some people (e.g. my worrywart spouse) might appreciate getting an eticket after payment, instead of waiting until arrival there to pick up and inspect tickets.