ma101,102,103,104,105 have all been discovered and I think it's unlikely any bigger ones will.
ma101 - used to go for about 3k a year or so back, price was deflated due to the number of these amps in game and the fact there was a few of them selling. It looks like they're all in good hands now so price could be as high as 5-6k if you want to get them from current hands.
ma102 - Just 2 ingame I think, last one sold for 23k on ingame auction about 6 month back. I own one so if you're interested please pm me.
ma103 - 1 only ingame afaik. Sold ingame auction for 35k recently which I think was a little undervalued, hoj owns it and has a selling thread atm if you're interested.
ma104 - 1 only ingame owned by NZR, probably talking around 80-100k for this one.
ma105 - 1 only ingame, hard to price this one. Depending on how desperate the seller is it could be anywhere from 100k to 200k.
