Originally Posted by Riceburner
The iPhone form factor isn't going to change for quite a while, so a manufacturer can tool up for a product, knowing he's going to have years of market. BUT the HTC phones are updated every few months (it seems like), always with slightly different shapes/holes/buttons, so anyone tooling up to make a decent case is going to be out of pocket pretty damn rapidly.
And yet a year after releasing the first model, they released the iPhone 3G which was a different shape...
And there's increasing rumours of a new model being released this year, quite possibly an 'iPhone Nano', which would be a different size again.
The simple fact of the matter is that iPhone accessories are a bigger market than HTC accessories, plus Apple customers are used to paying through the nose for accessories, so companies can get away with charging more.