Has anyone successfully put their speakers in storage for an extended period of time?

Sell them, and lighten your load.

thanks to thanks to all that responded.   We are taking EBM’s advice.  If we can interest any of you in our Kiss speakers by Vienna Acoustics, please see the auction for charity we created on Audiogon this morning

We’re about to upgrade our speakers, and am thinking of placing our existing, very good speakers in storage for possible future use in a second home or to hand down to our kids when they’re ready. I cannot think of a downside, with speakers as opposed to electronics. Any thoughts? [/auote]
how did you solve the storage issue?

how did you solve the storage issue?

I had a pair of Infinity Kappas in storage twice for a few years.  I remember reading that light is the enemy in terms of causing the speaker surrounds to break down.  Those speakers are 26 years old and still going strong.  

So this is where i can share some insight into speaker storage, i Have three storage lockers with speakers in them and i have had these lockers for ten years, these are shipping containers that was on large ships 10' by 40' long, it seems that the foam does rot and this is a sealed container!
and another issue at hand is the glue that the manufacturer uses to build the cabinet breaks down over time and the cabinet rattles when played, but each speaker has it's own issues. so here we go, the Maggies- the panel glue for the construction fall's apart along with the voice coil, Jbl suffers from foam rot and it's white cones foam get's hard and cracks, 
Altec with treated pleated surrounds, the treatment flows to the bottom of the woofer, electrostats- the Mylar needs to be re-tighten, then their is the issue of wired connection building up resistance on the connections- and the screws get rusted from time to time  the oils in the verneer dries up.
 then you might start to have crossover componets draft out of spec but if you take care of the speaker for storage you should be fine.