I paid for platinum thinking that I will get platinum exclusive videos, fx etc. but  it seems that professional is getting the same as platinum. Are there some things down the line that are exclusive to platinum. just wondering about the benefits of having the top tier.

The new LP mastering FX are Platinum exclusives.
edit: Not sure about this, I was going by the Rolling Updates page which disagrees with the documentation.

There's a whole feature comparison chart of the difference between versions. There's a lot of Platinum exclusive content. 
 
Obviously, some of the new content will be for all versions with more towards Pro than Basic.
 
You're free to switch to the Pro membership if you feel that's enough for you, that's one of the benefits of the membership construction. 

There is often content that is release exclusively to Platinum members at the time of release.  I forget what was specifically done last year, maybe some loops or something.

Fly-out eq

Ya there's a bunch that's exclusive. The list in on this page but in terms of Pro vs Platinum briefly:
 
Drum replacer, vocal sync, console emulator, mastering plugins, dimension pro full, and a bunch more 3rd party content.

yea you'll are right. it's clear as mud lol.  no plans of switching to pro.  I'm standing in cement firmly planted.

I dunno, seems pretty clear to me of you look at the charts. Look at the dots in the Pro group, then look at the dots in the Platinum group. Any time there's a dot in the Platinum group not in the Pro group, that's something that is Platinum exclusive. It is, as with most audio software, down to included plugins since Cakewalk doesn't artificially limit things like track counts. Platinum comes with a number of additional Cakewalk plugins, and a number of additional third party plugins.
 
If you already paid for Platinum there would be very little reason to drop down to pro as the renewal price isn't much difference. If you have Pro and are thinking about upgrading to Platinum it is pretty easy to see what additonal toys you'd get.

The quadcurve EQ flyout with frequency analysis is a great Platinum only feature also. Personally I wouldn't downgrade for this alone!

The mastering effects are in pro, just another location.