It's not going to be a popular opinion due to the 10x difference in price, but I think the Rohde & Schwarz RTB2004 is one of the best hobbyist class scopes you can get (in terms of bang/buck).
So what's going on with the RTB2004 that is providing so much bang for that 10x price difference... and why do you claim that such a machine is "hobbyist class"?