I am considering purchasing a Simulation package, and was curious to hear what others have done as far as purchasing or not purchasing the subscription maintnenace. I own Solidworks, and can see the value in having a subscritption that allows me to update to the newest release of SW, since my customers often update and I need to be on the same release as them to be a viable partner and keep their business. For simulation work, however, I would not be trading files back and forth. All simulation work, I expect, would be done on my end and the actual simulation files would stay with me (they'd just get a report). That being the case, what is the value (other than perhaps enhanced features with new releases) of purchasing the subscription plan? Are many of you simulation users on the subscription plan? Are many of you not?