I hear what you're saying, but I do think it's a little unfair. The whole suite of products aren't that expensive, relative to the amount of earnings tha can be made of them.
I was like you and had all the single extensions but upgraded at the discounted price to super suite about 9 months ago... I did this not because the single extensions werent working with my version of Dreamweaver but because I feel it a small price to pay for the level and quality of support in general and for product that encompasses all that is needed to be able to have a thriving web business...
Ultimately WA are going to carry on evolving their products, some are going to fall by the wayside, some are going to be upgraded and some get soaked up into bigger option 'packs'. am sure that any of the single extensions you have will carry on working regardless of whether or not they are still be offered out as single extensions
Just my 2 cents worth and a different viewpoint
all the best