I may have got details wrong, but if I've read the site correctly... prices in Australian Dollars, "AD"...
Current version: AD 15
Version 1.0 list expected to be around AD 50
Then there's a free demo version...
"Ten minute trial (then 30 day trial with a simple email unlock)"
"After 30 days of use or 100 sketches there is a delay timer on loading a sketch and
code limit of 150 lines"
See more at: http://www.virtronics.com.au/Simulator-for-Arduino.html
===
Now... don't get me wrong: It is THEIR product, and they have every right to sell licenses for use as they see fit. But I'm going to invest some time in the FREE simulator first, and see if I can live with it before spending money that I could spend on actual Arduinos!
And when it comes to shareware, I don't want to invest time in getting to grips with something if usage is time limited. Feature limited: Fine! But I rarely see something that is time limited that interests me enough to spend time there.