Is there a chance to loose domain because of its of high value?

I always wonder, if there is always a risk if of loosing domain and a cheating by registrar, once it becomes a valuable domain?

What you guys think?

And which registrar seems most reliable to you?

As in buisness there is always a risk, even with a register. Thats why you should use reputable ones

Go with GoDaddy they are one of most reputed one