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.
I actually have some conservative stances against AM as laid out here, but they are based on something. That's the difference. Saying you're at a loss if it drops 0.05, and thus should not invest, doesn't hold say much.
You can come up with a lot of good reasons not to invest at 4.5, or 2.5, or
at all, but it's not that.
The recent optimism is based on more substance than that.
Edit: Sorry nubbins, I'm going through some IRL stuff. That was uncalled for. I shouldn't be arguing online.