Obviously millions of matches for "2mm" on Google. Do you think 2mm.biz could achieve high $xx to low $xx due to it's genericness? (ok, not a real word!)
Sorry, but undeveloped it won't get you that kind of money, unless of course you stumble upon an end user in which case you can expect well above low $xxx, but you can't really bet on that. For resellers, i think this name is worth low $xx, mainly because it has .biz extension which doesn't really sell well.
2mm = to make money (millions also ) .biz = in business more than $xx IMO put some money making oriented techs , affiliates programs good luck