well, it won't bother me if we are are restricted to one acount (which means 5 char's), but I have to agree that only 1 char would limit RP and such.
for example, seams hard to hold just one fighter char, which means we have to make missions and kill NPC's to survive, which means we need to have a bad rep somwhere which mean NPC's will harass us in PVP fight's (which wouldn't be bad if the RP was faction aligned), not to say that it's hard to make more then 12 mill in an hour making missions. 12 mill may mean only 4 or 5 PVP's for some player's (about 10 minutes I supose).
I don't believe that anyone (except 2 or 3 players) will get a train, and if they do, how long will they keep playing.
in the end I think there's one minimum of 3 required char's: trading, fighting and storing (which is even more important since the dinamical economy exist).
I have to say I hold 2 acounts with 8 char's atm but I wouldn't bother to dellete one of the acount's if it's needed.
and I also loce chess, so if there's anyoe interested? :]
just my 2 cent's