>>59042025Depends on the game. Gen I definitely saved a good chunk of its best TMs as single-use (Psychic, Earthquake, Body Slam, Toxic, Thunderbolt, Ice Beam, Rock Slide, etc.) while some other really good TMs can be bought infinitely (Hyper Beam, Substitute, Surf)
It wasn't until Gen III where they started making loads of the "useful" moves infinite like Psychic, Thunderbolt, Flamethrower, Ice Beam, etc. but they're also generous enough to give you a single freebie TM as well
>>59042083This is partially what makes Water such an insane type in-game because Surf being able to be learned by every Water type bar Magikarp while Electrics are fighting over Thunderbolt basically allows you to run mono-Water teams without question and can even grind up some of the mons that naturally learn kickass shit like Ice Beam or Psychic without issue
But at the same time, Gen I bag limitations basically meant that TMs COULDN'T be infinite otherwise you'd have like fuckin 90 key items and you'd never have any space in your bag again. It makes TMs difficult, but very necessary to use
