Vegeta doesn't want to acquire his power the way Goku does. Goku is prone to using transformations to power himself up whereas Vegeta acquires his strength through his own hard work and determination.
That was a rhetorical question. You opened up making a claim about Vegeta not using transformations and predictably moved goalposts when contrary evidence was presented in my last post. If I did prove that point you'd just say common norm or something similar.