I remember a conversation I had with someone griping about Goodberry in modern D&D and I was like "now wait a minute, that's been a Druid spell since AD&D! How come it's a problem now, and it wasn't back then?"
And his reply was simply that 2nd-level Druid spells (which Goodberry was at the time), were generally as many Cure Light Wounds as you could cast (since CLW was a 2nd-level spell for Druids)! The opportunity cost for having Goodberry meant there was little magical healing you could provide!
If we didn't have modern Clerics and Druids able to swap their spell lists around daily, that would cut back a lot of issues, I think. As for Wizards, since it takes time + money + opportunity to greatly expand their spell lists, I don't think it's as big a deal for them to be able to swap spells around, but YMMV.