When I was shopping around a couple of years ago, I looked at the same routers. I've been running a Vortech for over a year and half. I have ordered my second one and I am awaiting delivery now. I talk daily with many people who own a vortech router.
I have never had a problem with my router and the guys there are great. They are very responsive and proactive. After my initial purchase when I didnt know much until now when I bought my second one (and I know a little), I continue to look at all the options out there. My Vortech runs trouble free every time I turn it on and has made me money everyday for over a year and half.
There are alot of routers out there under $30,000. I have met with people who own and let me personally run an ez router, a shop sabre, a Camaster and a Gerber sabre. They all have good things about them and they all have people on boards saying good and bad things.
From what I have experienced and for my money, Vortech offers the best router for under $30,000. You will find other people here who based on their experience or on whatever router they are being paid to push will have a different opinion.
The good thing is no matter what router you buy you will find alot of people here willing to help if (or when) you have questions.