You've never actually developed for an iPad then, have you?
Apple actively encourages iPad-specific GUIs for that platform. You can build a single app that will use one GUI for iPhones / iPod Touch, and another for the larger iPad displays. They'll often look very different.
I've used both platforms and very few Android applications actually bother to do anything similar: most literally just show a cheesy stretched-out phone UI with terrible use of space and potential. Only a few of the big name developers are actually putting any effort into this aspect, but the ratio of stretched vs. native tablet apps is still terrible when compared to the Apple ecosystem.
There's really no excuse for this. It's just laziness on the part of developers. If they can't be arsed to put a bit of effort in the user interface design, why bother writing the thing at all? You can add all the functionality you like, but if it's a bastard to use, nobody's going to buy your mousetrap.
Also, while Android has less curation of its app stores (unless you buy an Amazon device, in which case, it's a hell of a lot more 'closed' than Apple's), that just means any old newbie with a compiler can spam it with ill-designed shite and malware. Any good developer must fight through all that noise just to get noticed.
Apple's store curators may occasionally let the odd bit of malware slip through, but it's still rare. Furthermore, it's nothing like on the same scale as Android. And, from a support perspective – i.e. mine – that's a massive advantage: I have enough crap to deal with when relatives ask me to "look at" their PCs, without having to do the same thing for their phones as well.
You can keep your tat bazaar; I'll stick with the department store. The former may offer a greater choice, but the latter offers better quality. Choice for its own sake is pointless.