If you already bought the product, you own the product, but with the new subscription model you are only leasing the product, not owning it. If you contact sales directly, you will be able to get a considerable amount discounted on the activation fee if you decide to use the subscription model as well. The benefits to owning the suite is if you are planning to use the suite over a long period of time, and don't want to be tied to the subscription.
If you decide to join the subscription model, you will be able to get the updates to the products without paying extra.
You are not losing anything, you still own the products that you bought and that wont change.
Here is a thread with some additional discussion about this issue: