Barbarians routinely stocking up on Greater Invisibility scrolls at the magic shop in Baldur's Gate? Absolutely not.

I actually want 5e strictly to the letter on this one. No splashing 1 level into Wizard multiclass to cast those Greater Invisibility scrolls without a chance of failure, either.

I also don't want to see a Wand of Fireballs to be free for all. Requires attunement by a Spellcaster. Attunement needs to be a thing. This is not an ARPG where you are a magical christmas tree.