>>11643743I've got the old Cybertron Optimus, but I only have the Nova Prime version of the Siege mold. Still, I think it's probably similar enough for a comparison.
In my opinion, the original version from the Cybertron toyline is so much better that it's not even funny. Just about the only thing the new one improved was having ankle tilts. But in every single other way, including size, aesthetic, sturdiness, alt mode, gimmicks, and playable features, I prefer the old one by far!
As for whether it's worth the higher price, that depends on how badly you personally want a better toy of this version of Optimus. If you aren't particularly attached to this design, then the Siege one, despite not being a big step down, might still be able to fall into the category of, "good enough."