No SD slot makes the Nexus worthless. Throw a slot in it and it would shine. I would never buy an 8-16GB tab with no expansion. For fixed RAM I wouldn't get anything less than 64GB and for the iPad mini, it's way overpriced, WAY overpriced.
I agree that there should be an SD slot, and I like having that available. The flash drive setup is not perfect, but it works and is about 200 bucks cheaper than an apple product and has the freedom of the android os. -- Para Bellum!!