Solo is so impossible atm assuming you have the best luck ever you will never hit a block. I've run Block Erupters for 1 1/2 years now, and my highest share was 23M. Def not worth it, solo on an altcoin. You might hit a block there, but def not here. It takes me a week to even hit a 1M share, and that's once or twice a month on avg for 1 block erupter for me.
However that's the point. His little pile of hash won't earn him a thing (it'll likely lose him money after power costs) at any pool.
Might as well stick it at a solo pool and just let it run. Maybe in a year he'll hit one. Maybe not.
