Truespace, in my oppinion, is no longer a good value. I have truespace v6 and have used v 1 and v3 prior to that - considering you can grab Lightwave for a couple hundred more and that to reach all of Lightwaves functionality you would need to spend $200 - $600 or more on plugins for Truespace…well…it just doesn’t seem worth it.
I regret ordering the v6 upgrade before looking at lightwave 7.5. I could have saved $400… Lightwave is more stable, faster and has a community supporting it that is nearly as helpful as the people here.
Lightwave is just as easy or easier to use, has a render engine that is second only to the bleeding edge / super high end render engines and their support is wonderful - something Truespace is lacking in a big way.
Both apps will have a learnnig curve to model and get the render engine to do what you want - but neither is too bad.
When I ordered lightwave I expected to leave Truespace installed for modeling and have found that as I learn Lightwave I have less and less use for Truespace at all - Lightwave is even easier to model with.
With all the “high end” 3D packages dropping their price and offering demo versions so people can try them out - Caligari (truespace) needs to either drop their price as well or work some fantastic features into their program to justify running with the “big dogs.” The selling point used to be a middle of the road price point and an easy to use interface - neither of which are true anymore.
Just my 2 cents.