Not true.
For $745 you'd get Special Edition and Special Edition Plus Standard libraries. This would give you sul ponticello for the solo strings and the orchestral strings.
The $1600 price tag you reference is if you bought the Standard AND the Extended libraries. What the extended libraries get you, among other things, is chamber strings and Appasionata strings, however there's no sul ponticello articulation included with those.
So not to convince you one way or the other, but what it sounds like is you'd just require the SE and SE+ Standard libraries. I can also tell you I recently purchased those and am very happy with my purchase. The samples are good (better than what I'm used to) and there are plenty of articulations and techniques for what I write.