Check out Virtra's competitors. Arotech makes the MILO systems and their share price is down 60% over the last year and is even with 5 years ago. Cubic, possibly the largest simulator manufacturer, has seen their share price go down 10% over the last year and is only up 10% over 5 years ago.
VTSI is up 50% over the last year and also up 50% from 5 years ago.
The 1- and 5-year charts were the easiest to pull up so that's what I used.