IF BUYING A CHEAPER PRICED ENGINE FROM AN OUTSIDE SOURCE WILL KEEP YOU GOING IN THE HOBBY, THEN DO IT !!! DON'T FEEL BAD ABOUT IT !!! IF A POTENTIAL HOBBYIST GETS DISCOURAGED BY THE PRICE OF AN ENGINE AND DECIDES TO NOT GET IN THE HOBBY,... THE HOBBY LOSES. I AM ALL FOR SUPPORTING MY LOCAL HOBBY SHOPS AND I DO... EVERYONE SHOULD. IF AND/OR WHEN YOU HAVE AN ENGINE PROBLEM, LEARN HOW TO ADJUST OR FIX IT. IF YOU ARE UNABLE, DUE TO VISUAL OR PHYSICAL LIMITATIONS OR JUST PLAIN NOT MECHANICALLY INCLINED, PAY THE EXTRA COST FROM A GOOD SHOP FOR THE PEACE OF MIND. YOUR JUST BUYING INSURANCE AND YOU'LL COME OUT AHEAD.