I definitely think Shop Keep and Hoarder could use a little love. They both scale really well into the late game on their own with the upgraded gear coming in later (the hoarder does duplicated the AOE effects), but I do think they need a slight nudge after looking over the units people have gravitating towards recently.
I don't think they're unplayable or anything though, just need a small adjustment of some kind to bring them back into line with the other units on terms of power level.