Here’s a fairly future-proof hub for USB-gadget hoarders. Chinavision’s Warp Speed hub has 12 ports, 6 of them USB 3.0 compatible. Unless you’re really an early adopter, I think that’s more than enough.
As you can see, the hubs are fairly widely-spaced, so you should be able to use all 12 ports at once. Now you can finally set up the one tablet, two printers, two mice, three external monitors and four keyboard rig you’ve been dreaming of!
You can order the Warp Speed 12-port from Chinavision for appx. $41 (USD); you’ll get a discount if you buy multiple units (in case you have 24, 36 or some other multiple of 12 gadgets you need to connect). It’s temporarily sold out right now though. Better round up your USB gadgets while waiting for it to be available.