No not really.. you are assuming video game style bottomless wand vendors too. Eventually the group's hp growth needed to step up to things like some amount∆ of things like CMW wands or the gm just said "no the town only had N of them available". Similar soft caps eventually kicked in against Bob's excessive recklessness even if someone in the party was crafting them.Except that with linear hit points and exponential treasure rewards, that cost became less and less significant as you gained levels.
In any case, this was just to point out that, for earlier editions, looking only to the healing available through the casters' own spell slots did not tell the whole story.
∆because CLW wands eventually stopped cutting it for in combat needs and simple matters of availability kicked in for our of combat needs
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