This might work in Diablo but hardly in D:OS. Diablo has unlimited grind, you enter a game and there will be new enemies to kill for money. D:OS has a fixed amount of money, so there is not that much of a unlimited supply of money.
Also at current state equipment attributes are far to random, you would get more useless stuff than good stuff.
Also why do you expect such a vendor would be more likely to offer spears? They would we as unlikely there as everywhere else, would be my guess.
