Viability of dual boxing?Follow

I don't see this anywhere, and it has likely come up before but I am recently returned from a Cryptic sabbatical, so humor me.

Any thought on the viability of playing two accounts at the same time, wether through two computers or elsewise? It seems that with such a fast paced and abilities oriented game as WoW a dual boxer would not come out much ahead of the curve compared to a soloer and a good bit behind someone with an actual partner.

I ask because I know of someone in the area thinking of setting up 2 accounts, and I am trying to convince them that it would be something of a waste of 50 bucks.

See, you step out of the forums for 6 months and they start adding useful stickies. *shakes head*

Thank you there.