TheSword
Legend
The rule is unfairly strict yes. Quite simply it penalizes spellbook classes over other spellcasting classes.
Aside from the money sink (and no I don’t agree that many other classes also have money sinks to be able to use their core abilities) there is the issue of balance.
When a wizard levels up they increase spells in their book to allow some kind of player control over their key class ability. If this wasn’t the case a player would be dependent on the DM providing such spells as treasure or making them available (as an NPC tutor/library). This is particularly problematic at odd levels as without the grace of the DM you can’t use your most powerful ability.
By allowing the players to learn the spells but not memorize them without paying extra resources you are effectively teasing the player. If you then put them in a situation where they haven’t got the resources to pay, then you are penalizing them against other classes.
You asked if the house rule was too harsh. Yes it is, it adds additional penalty to the class, when it doesn’t matter it’s just an annoyance, when it does matter it stops a class use it’s best ability. I’m normally firmly on the DM bench when it comes to restrictions and oversight but this is a crummy house rule.
Aside from the money sink (and no I don’t agree that many other classes also have money sinks to be able to use their core abilities) there is the issue of balance.
When a wizard levels up they increase spells in their book to allow some kind of player control over their key class ability. If this wasn’t the case a player would be dependent on the DM providing such spells as treasure or making them available (as an NPC tutor/library). This is particularly problematic at odd levels as without the grace of the DM you can’t use your most powerful ability.
By allowing the players to learn the spells but not memorize them without paying extra resources you are effectively teasing the player. If you then put them in a situation where they haven’t got the resources to pay, then you are penalizing them against other classes.
You asked if the house rule was too harsh. Yes it is, it adds additional penalty to the class, when it doesn’t matter it’s just an annoyance, when it does matter it stops a class use it’s best ability. I’m normally firmly on the DM bench when it comes to restrictions and oversight but this is a crummy house rule.