I was going through many of the older adventures from various editions, and it seems that 5e has a significantly lower amount of magical items in the published adventures than previous editions.
For example, in B/X and 1e, it seems there is an average of 29 magic items per module (it varies quite a bit, like Palace of the Silver Princess having roughly 10, while Keep on the Borderlands is pushing 40, and Temple of Death having 65!). But most are between 25-30, with roughly half of those being potions or scrolls.
5e seems to really have pushed the "magic" part of the game into class abilities, and away from magical items. Let's say a typical campaign in B/X starts with B2, goes to X1 Isle of Dread, then X4 and wrapping it up at X5. That puts the PCs at around level 8-9ish. In that one campaign, there are 141 magical items. how many are there in an equal 5e adventure path from levels 1-10?