Oddly enough, Fry's website, which has a $500 price on the S426 HCS3 5-pack, is showing a price of only $70 right now on the S426 towers. If you bought them for $87 in store, you can probably go in and get a store credit slip for the difference, which can also be cashed out.
The retail Fry's and their website act as separate stores, but even if they don't have them on sale for $70 in store, which is hard to imagine given the price for the 5-pack, you could probably get them to match the website, since they match net prices now.
I'm still waiting for the Jamo 5-pack S426 HCS 3 set I got a rain check on for my handicapped neighbor. In my daily call backs to check if they have them in yet I found out they put them on sale yet again, this time for $147.
It's been a bit of a fiasco trying to get a hold of a set this time though. When I checked last Fri, which was the first day they said they might show up, they then said it could be anywhere within another two weeks.
After telling them my friend's receiver's return period is ticking down, they agreed to have the Oregon store send a set they had. A few days later I found out they transferred them to the wrong store.
I called back my store, asked them to transfer me by phone to the Or store, and arranged another set to be sent to. Their AV mgr assured me they would be sent right this time, and should arrive Thur.
I could go in and get another $2-$3 cash back on mine since they dropped price yet again, but it's not worth that small an amount to spend the gas on a separate trip, so I'm waiting until they get another 5-pack in.