I happen to disagree. Parts are plentiful as TGA sells them, you can get them on e-bay and Iron Bay sells them. They are no more messy than any other df to run, and if you think that you have to have internal ducting and carbon fiber airframes to have a reliable product thats just not true. I did say that they would not stand up as long without some maintance - but my f-16 is still going strong. The size and slower speed makes these jets the way to go and still the most forgiving. Why is it that something that was top of the line yesterday has to be inferior today because it doesn't use the latest and greatest technology (My 1962 Cessna 150 is a dream - sure it's not a glass cockpit B767 But it does the job really reliably and economiclly)