1st Ipad purchase and Ios device - retina mini 16gb enough?

Help me make a decision.

My 1st ios device. Ipad retina mini. Is 16gb enough or will i definitely need 32gb?

I do download apps and I expect to download many. I have an android phone but I like the ios app ecosystem. in fact thats the reason im getting an ipad simply for the app ecosystem over android.

But with the retina HD apps and all, is the 16gb going to cut it? I plan on using it for 1 yr, trading it in for $$ and then buying the latest and greatest ipad or other tablet.

DOes 16 gb get anything done? BTW, i dont really watch full movies on an ipad.