Yeah I have a blessing marching bari among my horns, just not as well as other brands. Basically a yamaha rip with out the thumb slide. Ebay often comes up with some that really show the battle scars lol.
As for the other instruments on there ( Chinese, Pakistani )... cheap but bad... I've played on a concert euph off of there and a trombone. Neither of which worth even the small amount of money my friends had paid (and left them still looking for a horn to use )