Well their product is also listed in there under upgrade/competitor.
You still get the $20.00 rebate if you own a previous copy of ECDC. Then you also get the $10.00 rebate.
That is there upgrade option plan and simple?
They sent me my upgrade email showing the same exact info?
Calvus
Edit:
Note the wording:
To qualify for the $20 upgrade/competitor mail-in rebate you must be a licensed user of a full retail version of one of the following products: Ahead Nero, Macmillan MusicMatch®, Stomp Click ‘N Burn™ or Record Now Max, Valusoft® Burn & Go™, Broderbund™ Total Burn™ or Adaptec/Roxio Easy CD Creator, Pinnacle Instant CD/DVD, or Instant Copy
It's possible that the larger rebate on the boxed version is to encourage sales of a product which has already been manufactured, and which will become garbage if not sold/used at least once. When they ordered the hard copies, they may have miscalculated the proportion of boxed vs download sales.
Well the price before rebate is the same. The boxed version would add shipping and (possibly) tax to the price. Something like 40% of rebates are never collected by those eligible; I try to judge the cost by the stated price, not the after-rebate price.
I've found the folks at Roxio to be pretty friendly and helpful. Why don't you call or write them and see if anyone has a more logical explanation?