Oh, again, I totally understand why players do it. Heck, I probably do it to some degree when I am a player too. It's not like I don't understand the reasoning. I just don't like it very much.
Like, why buy winged boots (uncommon) when a Broom of Flying is faster, can work independently and doesn't have a time limit, all for the same price? Oh, and the Broom isn't attunement, so, you can save your attunement slots for other goodies. Or, a Carpet of Flying, which is Very Rare, meaning you can buy about ten Brooms of Flying for the same price.
So, gee, shock, all I see are PC's buying Brooms of Flying.