I would take Martin any day over Chauvet, Eliminator, Venue, and American DJ. Martins are built-to-last. Their customer service is stellar too. I had to send in my SCX-500 (even after the warranty ended), and they repaired it at no cost.
Yes, Martin fixtures tend to be heavier and more expensive than those other lighting manufacturers. One of my DJs have RoboScans and RoboColors, and they have served him well for almost a decade. They are THAT good.
I'm eager to see how Martin moves into LED fixtures.