Of course you can get more bang for your buck by being more deliberate. But that's equally true with US frontier models. You can optimize your work by choosing between Opus, Fable, Sonnet, Sol, Luna and Terra for each task. Some people seem to prefer to let Opus code and Sol review, for example. And then there is the whole debate whether $current_version is actually better (Some people stay on Claude 4.8 because they dislike how 5.0 is sometimes doing stupid things, just as many opted out of dynamic reasoning when they still could)
Claude is very spendy.