The Patriot Signature Xporter Axle 64 GB USB 2.0 Flash Drive is the drive in question. This flash drive features a swivel cap -- hence the Axle name -- so there are no pieces to lose, unlike many other drives. Its manufacturer suggested retail price (MSRP) is $65.99.
The same drive at Amazon.com is currently priced for about double this deal, at $39.06. Even without the rebate, Buydig.com's price is less than the Amazon.com price, at $37.99. The rebate, which can be found here, is an $18.00 mail-in rebate.
The rebate is valid on orders made between: Sept. 21, 2013 through Oct. 5, 2013. It must be postmarked within 30 days of purchase. It is only good on purchases from Buydig.com and Beach Camera.
In addition to being valid on the 64GB version of the product, the same drive in 32GB form also has a smaller rebate. For that drive, the rebate is $10, and brings the price down to $9.95 (currently priced at $19.95 at Buydig.com, and $21.08 at Amazon.com). Shipping is free.
Buydig.com also advertises a 45 day return policy.
Notably, this drive only supports USB 2.0. USB 3.0 is the current standard.
That may amount to a deal-breaker for some, based on the speed differences between the two standards.
USB 2.0 was released in April of 2000. The maximum signaling rate of USB 2.0 is 480 Mbit/s, with effective throughput up to 35 MB/s or 280 Mbit/s. The USB 2.0 spec is now called "Hi-Speed," after the development of USB 3.0.
USB 3.0 was released in November of 2008. It has received the new "SuperSpeed" mode moniker and sports a signalling rate of 5 Gbit/s and a usable data rate of up to 4 Gbit/s. It is backwards compatible with USB 2.0.
A January 2013 press release from the USB standards group revealed plans to update USB 3 to 10 Gbit/s to put it on par with Apple / Intel's Thunderbolt I/O port speed by mid-2013. It's unclear when USB 3.1 will reach the market, though.
The slow adoption of USB 3.0 -- evident by the proliferation of devices still being released with USB 2.0 capability -- will probably mean a similar slow adoption for USB 3.1, in any case.