Hide Price & Add to Cart Button

i read a litle on functions like how its work and i realize that is one more plugin like all the other plugin that is hide price and add to cart button based on categories etc. None of the plugin out there including this one have the most important RULE. attributes, yes thats right attributes or custom taxonomies. What if i want to hide the price on specific attribute ex BRAND based? what if i want to hide the prices and the add to cart for specific supplier that i have as taxonomie? or what even i want to hide the price and add to cart for multiple products, no 10 or 20 products but 500? there is no option to hide the price on each product individualy. Add those features and i will buy this plugin and i will promote it day and night