I read with great interest the thread on Stihl backpack blowers, http://www.lawnsite.com/showthread.php?threadid=21495, but I'd like to take the discussion a bit further. I'm currently considering three backpack blowers. The first is an Echo BP-403 that costs $399 at Home Depot. It has a 44 cc engine and a nozzle speed of 380 CFM at 175 MPH. I also saw two Stihl models at a Honda dealer, the BR340, 44.9 cc, 435 CFM at 162 MPH for $299 and a BR420, 56.5 cc, 476 CFM at 180 MPH for $399. Notice that the Echo costs nearly $100 more than the Stihl BR340 and its specifications are slightly inferior (I think). I need help here because obviously other factors such as comfort and reliability, etc are important here. Unfortunately, the internet doesn't offer much in information to help me out. Why's the Echo so expensive? Is it the fact it has a 2 year commerical warranty and the others don't? Is the Echo 403 comparable to one of the Stihl models? Which model actually has the best blowing capability? What do you recommend? Thanks.