Crash kit from heliproz is $39.99 where as the crash kit for the 30 is $34.99. V-blades cost the same for a 30 as the do for a 50. But fiberglass blades do cost a bit more for 50s. $50 instead of $35 for SABs. It does drink about 50% more fuel but it also has 50% more power. I like the design on the OS 50 carb better than the OS32 or TT66. The 50 als has a ring in it. I like ringed engines!