jaspers glitch just as well and carry virtually no risk of rrod, falcons sadly are high risk.
I don't know about risk, My falcon is flying fine, along with the others i have done, all well over 4 years old now.
Although, i do keep mine clean and give advice to all my customers to keep their machines on a pc fan base to remove excess heat and frequently clean their 360's with compressed air. Just to blow the old dust away.
I have found that computers and consoles and the like last as long as they will if you just treat em correctly.
Putting tv's on top of them, keeping them in tight spaces and such is not a good conductive for a long lasting machine.