Adding to @sdayman I would like to point out that more and more browsers (including iOS 12, macOS 10.14, Chrome, Firefox…) are moving to have no positive visual indicators (as padlocks, green chips, names for EV certs, etc.) but only negative ones.
As it goes now most users on the latest (stable or beta) releases of browsers won’t see a difference in using an EV certificate and they don’t know the difference to a non EV cert. They can barely distinguish an original from a fake website.
Are you sure it makes sense to buy and spend a lot of money maintaining an EV certificate.
PS: read Troy Hunt’s blog (troyhunt.com) and Scott Helme’s (scotthelme.co.uk) for more info, there are far too many articles to link.