Drupal Commerce - Add to Cart form tweaks
You can add the rendered field into the add to cart form like this:

function mytheme_form_commerce_cart_add_to_cart_form_alter(&amp;$form, &amp;$form_state, $form_id) {
  $product = $form_state['default_product'];
  $view_mode = $form_state['context']['view_mode'];
  $form['price'] = field_view_field('commerce_product', $product, 'commerce_price', $view_mode);
}