The official dermapen is ~$400 for the personal (fixed needles - sold with 0.5mm but you can swap out to 1.5mm ($75 for 5)) and although prices aren't listed, I'm gussing ~$700 for the professional and ~$1000+ for the medical version.
The my-m http://bellaireindustry.com/my_m.html you can get the official version for around $450-$500.
The mesopen http://www.bellaireindustry.com/mesopen.html - not sure on price.
The eclipse http://www.eclipsemicropen.com/ is around $3000 for a full medical starter kit with materials + needles and such.
Keep in mind disposable costs for the needles as well.
The only thing that has actual medical science is using duct tape on warts in order to starve them of oxygen. I assume this is where this idea came from.
Considering the purpose of the duct tape is to starve off oxygen, micropore tape won't help with that. So if trying it - I would personally try it with duct tape. Will it work? who knows. Here's a thread :
Silicone sheets help with flattening as well supposedly.
a) Fractional co2
b) Probably erbium or "fake" co2 (fraxel re:store). It won't darken - it will do the opposite, it will lighten
c) Depends on the laser and depth. Probably around $500->$1500
d) 3-5 of the fractional co2
You need to find a doctor who has experience dealing with darker skin types.
I've posted my experience about Airgent (enerjet) in the old thread. I had 4 treatments done like a year ago at maximum settings.
Personally, I don't think it's worth it unless you have mild scarring or want something low(er) risk. I got ~20% improvement and I've had much more success with other treatments. Glad people are getting results though.
USA CA: Dr. David Rahimi (Beverly Hills) MO: Dr. John Despain (Columbia) NC: Dr. David Spencer (Winston Salem) NY: Dr George Yang (NYC) NJ: Dr. Jeffrey Rapaport (Englewood Cliffs)
NY/NJ: Dr. Hyun-soo Lee (Flushing, Bronx, Englewood) TX:?
Toronto: Dr Benjamin Barankin, Dr. Paul Adamson (considered good, but really $), Dr. Maxine Yat Wing Wong