Zardnaar
Legend
When you're tempted to make up statistics to prove that you're right because the thing you don't like is relatively unpopular, remember that D&D is amazingly unpopular, that it doesn't matter because popularity or the lack thereof proves nothing.
And then don't bother.
It's more a matter of having solid prices and make/buy at all, than the specific prices. It's player-'entitlement' - you pays your gps and you gets your item.
Outside of the treadmill, which could be kept going w/o magic items by flipping on inherent bonuses, magic items were relatively minor in 4e, they could add color, or, typically pre-some-erratta, drizzle a little gasoline on the fire of some build. The rapidly-ballooning pricing was, likewise, mainly about their role in the treadmill, not too important outside that.
5e, like the classic game, leaves items the purview of the DM - so it's magic item designs needn't consider balance or scaling, and putting them on a wealth/level schedule with make/buy pricing would be as or more problematic than it was in 3e...
The 2% figure came from the stats here on ENworld in regards tot e % of people playing the various online VTT's.