I don't think it's a question of selling anything if you're new to modelling. It takes time to become a good modeller. It takes even more time to be a good animator.
While you're learning, you can use the "best" tools, i.e. the ones with the most functionality -- that is Maya PLE or GMAX. I don't know if the other big hitters have free learning editions.
Then, when you're knowledgeable, you can decide if you want to buy, or you can choose the shareware software -- and come to them with a lot of knowledge of modelling or animating.
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They SAID that given enough time a million monkeys with typewriters could recreate the collected works of William Shakespeare... Internet sure proved them wrong.
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