Extending the above code (thanks Ewout), the following code will get rid of all prices and 'add to cart' buttons on all woocommerce products, as well as provide an explanation as to why. I needed the code for a website that offers direct selling products and to comply with their rules, I cannot show prices to the general public.
Add the filter to your theme's functions.php file.
add_filter('woocommerce_get_price_html','members_only_price');
function members_only_price($price){
if(is_user_logged_in() ){
return $price;
}
else {
remove_action( 'woocommerce_after_shop_loop_item', 'woocommerce_template_loop_add_to_cart' );
remove_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_price', 10 );
remove_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_add_to_cart', 30 );
remove_action( 'woocommerce_after_shop_loop_item_title', 'woocommerce_template_loop_price', 10 );
return 'Only <a href="' .get_permalink(woocommerce_get_page_id('myaccount')). '">Registered Users</a> are able to view pricing.';
}
}