I think something I wrote may have created the question.
I don’t mean that literally ROI calculations are always a thing of the past.
It’s just as SaaS has gone mainstream, for most categories, they are unnecessary or less necessary because the categories now are well established — and budgeted.
If I’m going to buy CRM, or ERP, or Marketing Automation, or even Slack or NewRelic … I don’t need an ROI calculator. There’s a rough or precise budget from where the $$$ are going to come from.
If you are in an emerging category without budget, or clear understanding by the prospect of why there should be budget … then ROI calculators are still useful.