. . .  if you're a few months behind on updates?   I'd gladly pay a few bucks for this if possible. 

Just go to Cakewalk.com - everything is still there.

The Cakewalk store is closed.

Some retailers still have the DVD boxes in stock and want to sell them so there are a few places you can buy Sonar Platinum, like Amazon. There's also some new current and past versions on eBay.   

X3 and newer do not have physical media. There is no DVD in the box.

But you can still download from "my products".
I thought the OP just wants to download the latest files (for a backup, I assumed)

scook
X3 and newer do not have physical media. There is no DVD in the box.

 
Amazon doesn't mention a download and charges a shipping fee. They also estimate when your package will arrive.
 
Also, from the comments section:
 

Question: do you have hard copy instead of download?
Answer: Yes we do

 

The box contains with a card with the redemption code printed on it and and printed version of the Getting Started and Quick Start Guides but no disks. X2 was the last version to ship on disk.
 
Even if it did contain a disk (which it does not), it would be an older release as Cakewalk would not make new disks each month for the current release.

jbraner
But you can still download from "my products".
I thought the OP just wants to download the latest files (for a backup, I assumed)

He can't download Platinum if he's never owned it.
 
Like Steve said, X2 was the last version to ship on a DVD

no, what the original OP was talking about is not only do we get a unlock file to never talk back to cakewalk servers, but I hope the bakers will please go ahead and let everyone just have the latest version with all of the updates, patches, etc..:)
 
I was willing to get my version of sonar up to the latest version by paying for it, but the stores closed before I could do this, so please bakers, when you release the unlock file, give everyone the latest version...
 
thanks..