Yawn. Not if it stays at 4.5 or goes to 5 or 10 or even 4 BTC is still a profit in less than a year.
Sorry if I'm boring you. Maybe I'll give unbridled optimism a shot, it's pretty popular lately:
Why stop at 10? At the rate things have been going, it'll reach 120 by next year! Buy at any price! Etc.