(This part is new.  In the Cakewalk Store, if you hold the mouse over the the "buy now" box there's an option in a drop down box for "upgrade."  I was clicking on the "buy now" button all the time and there are no options on that page for upgrading- or none I saw.   Yes, the price is 50% off.)
Thanks for all the help from everyone. 

I'm busy and can't go looking.
 
I'm a long-time user.  My membership expired last October.  I think I'd like to upgrade (although everything is fine now) but I'm seeing the price is $499.  It says I'm logged in but...  Is that about right?

You do have to click the "Buy Now" button to open the cart but you are not asked to pay at that time. When the cart is open there is a space for a "Promo Code."  Enter your X-series serial number without periods or dashes in the "Promo Code" field and click the Apply button (below the red arrow).
 
In yor case you must insert your platinum serial number...

Thanks.  I appreciate the response but that didn't work.  I copied and pasted my serial number into the promo code box and it says invalid promo code.  Any other suggestions?

I say "it didn't work".  Maybe the upgrade price is $499?

There's a sub forum where they deal with this stuff post there, or they will probably move this anyhow. 
http://forum.cakewalk.com/Cakewalk-Store-f79.aspx
 Sorry can't answer question as everything has changed and beingg a lifetime updater took me out of the loop on pricing anyhow, to bad you missed that. It was $199 back in OCt last year. 
 

$500 seems steep to be less than a year out of date...  I could almost buy a ProTool license for that price.  Anyone from Cakewalk care to respond? 

I've tried the serial number from my existing license of Platinum- a few times- in the promo code box.  It says "invalid promo code." 
 
So I'm suspecting the upgrade price for me is $499.
 
I'm not a happy camper about this.  I've been a Cakewalk client since Version 8- 10 years maybe?  I was a rolling subscriber until last October.  I'm less than a year out and am being charged full price for the updated version of Platinum?   Not good.  I've never considered moving on but may just in protest.
 
I hope I've missed something and if I have will certainly apologize but $499 for an upgrade for CURRENT Platinum user is a ripoff.

Your posting in the wrong forum.
Your post will be answered faster if you just PM a Mod and ask them to move this thread or create a new post using the link Johnny gave you.
http://forum.cakewalk.com/Cakewalk-Store-f79.aspx
 
Your jumping to conclusions which is never healthy

This is the forum for Sonar Platinum, right chucky?  I'm a licensed Platinum user.  I'm trying to upgrade.  So I come here to ask the question because I'm not seeing anything in the store but $499 for the upgrade.   I've tried checking out in the store three different times.  Therefore I'm taking for granted that the price to upgrade is $499.  I HOPE I'm wrong!  But if I am someone needs to make this process easier for Jesus sake!... 

Sacalait
This is the forum for Sonar Platinum, right chucky?  I'm a licensed Platinum user.  I'm trying to upgrade.  So I come here to ask the question because I'm not seeing anything in the store but $499 for the upgrade.   I've tried checking out in the store three different times.  Therefore I'm taking for granted that the price to upgrade is $499.  I HOPE I'm wrong!  But if I am someone needs to make this process easier for Jesus sake!... 

You are wrong.