How long can I keep what I have?

If I'm at the beginning stages of MPB, thinning on the top, how long(years) can I keep what I have until it gets to a point where I need a HT, or hopefully HM ( if it comes out soon )

I'm using rogaine + propecia
also laser comb every other day

Do you know when HM will be available and where to find more information about it (safety/cost) since it's a new procedure.

2-5 years. Cost will be expensive I'm sure.

You might be able to keep what you have for many years. If you do well on Propecia you could stop your hair loss indefinitely. I personally think the laser comb is a piece of junk!