Blade-tech makes great tools. I wouldn't hesitate to buy/use one if I didn't already have so many folders that fill the same niche.
From my perspective, they're purely utility-oriented tools, without the collector appeal of a company like Benchmade or Spyderco, who often discontinue their models (which then makes them more sought-after, and makes me want to use them less to preserve their value. Ugh.).