I have a 32 gig ipad and I have like 20+ gigs of free storage
Yea, I gotcha. Like NiN said, if you can't wait, you can't. I know I'd wait if I might get double storage for the same price.
You can use a USB OTG cable to access external flash memory, but it's not always practical.
Sent from my SGSIII
Yea, but, if you have the 32 GB you have 32 GB in addition to being able to do that, lol.