That's what pisses me off the most. If you don't like the seller's terms, don't buy the damn iPad. There are other places to buy it - online especially, but other stores as well. Walk out, do some research, then buy from someplace that isn't going to ask you to spend another $150 just to get out the door.
Even if you can see through the bullshit at that store & persuade them to break the "policy", you're still supporting them by buying there - and the next 100 customers may not be so lucky. The store will make up that money they lost on you by getting it from some other sucker.
Again - usually I would do exactly that, but because I had a voucher which was only able to be spent in that store, I didn't have a choice. Saying that - it is the last thing I will be buying from JB.
Doubt is a pain too lonely to know that faith is his twin brother. - Kahlil Gibran