Gartner = Parasites
Let's name other businesses which rely completely on having a parasitic relationship with actual manufacturers due to the ignorance of the end user. If Gartner stopped existing, it would have absolutely no negative effect on consumers, vendors, service providers, SIs, or anyone else in the industry. In fact, most of these would save on insane subscription fees.
If you have enough money to burn on their fees and read their reports, you're big enough to do a POC of all the top products by market share and make up your mind based on facts... wonder if that'll be better or worse for businesses.