Good argument Jim.
This is one of the reasons I like mount and blade warband. So its a sand-box war game, you can make your character whatever you want, and push yourself to beef your trade or your horse archery say, till you can hit a general in the face, behind his army, while at full gallop.
Or you can try and be a successful lord, or go for kingship/queenship.
Now the game itself is not that hard, although some fights will be very challenging. You can put it on an easier difficulty, but the great achievements still take quite a lot of effort, planning, timing, luck.
And then after all that in the single player, there is multiplayer battles and dueling, where you then have to learn how to actually fight against humans and all that you can do with the simple dueling system, which has a lot of possible complexity behind it. E.g. mastering footwork so hits to you do so little damage, getting feinting down, hacking and throwing axes switching, how polearms are far different to sword and shield, what the counters to each weapon load-out are (short sword or sword and board counters spear, greataxe counters shields, throwing can counter greataxe, some don't do much damage but stagger your opponent, polearms and great weapons need a lot of room).