Hiya.

As to a direct answer to your subject title:
"Truespace: it worth for over 500 bucks".

The short answer is:
"Nope".

I started with tS (version 2, back on Windows for Workgroups 3.11/DOS!). Was with them up to and including version 4. But, they were going absolutely NOWHERE with animation, so I jumped ship. With tS 7.5, it's a LOT better, but still pretty damn slow to use in terms of animating...and the fact it doesn't work on Windows XP 64-Bit.

I would LOVE to give more money to Roman and his Caligari crew, but there is just no way in hell tS's price can be justified when there are packages out there like Lightwave, or Softimage XSI Foundation that can out model, out animate, out render and all around out perform tS.