Talk about the ultimate gold sink.
Any warrior, paladin, or DK aspiring to Frostmourne can start their primordial saronite collection now.
On most servers, the item is running from 2500-4500 gold.
First of all, when I found out the item was boe, I thought "if Blizzard wants to eliminate gold selling, don't they realize this decision alone will provide a HUGE boost to gold selling?"
Susan Express.com, the ubiquitous gold selling advertiser in trade, /yell, and /say, advertises their gold at about $7-15 per 1000g.
If you have no gold to start with, assuming you pay $10 per 1000g, and pay an average of 3500g per Saronite, that's about $875 to buy the materials for Shadow's Edge! And the sad thing is, many people are going to do this. (side note, the non-raid version, Quel'Delar, is running about $10-15k for the battered hilt - about $100-150 real dollars if you buy the gold).
I don't like the decision to make the item boe, but it is what it is. It certainly makes 'farming' gold easy, when someone can do the random daily heroic on 5 alts for 12 days and have about 15,000 gold from the emblems -> saronite alone. When people start really grasping this, it will drop the prices of saronite somewhat, but I doubt it will go much below 1-2k on most servers.
At any rate, the first part of the quest for the legendary becomes 'soloable' - in that you can get the primordial saronite without being in a raid. After that, you do have to get a competent raid group that can kill some raid bosses and so on, but that part shouldn't be too hard.
In any case, I do plan to buy the occasional primordial saronite. I'm no Gevlon - I'm not gold capped and I never will be - but I do find it easy to make gold in game and have had ~30,000g sitting on my main bank alt wating for 3.3, so I'll buy them as the prices drop a bit and see what happens when shadowfrost starts dropping.
It seems at least Shadow's Edge is somewhat accessible, even if I'm very unlikely to personally sniff Shadowmourne until after the next expansion.