Medical patents take years to make back the investment on. People continue to buy the the same medicines for decades.
The iphone made back its R&D investment in under a year. No one is still buying an iPhone 3G or a Galaxy S.
Try again. When we're talking about government granted monopolies, a really solid case for why it's in the best interest of consumers to create that monopoly should be made. No one has ever made one for software patents or using trade dress against a non-counterfeit product.
The Galaxy S2 is still for sale and was found guilty of violating Apple patents today. And who the hell is talking about monopolies? Do you see Apple suing Rimm? Nokia? Microsoft? No. And they are all competitors to Apple in this space who created very different products. Apple isn't even suing Google, Google is the one suing Apple. So I suppose that means Google is trying for a government supported monopoly too? You try again.