I have not been playing this game for very long - only eleven hours in. But I am really have a hard time pushing through it after I get so much stuff and have to go back to collect my souls. It is so repetitve sometimes that it makes me wonder why I continue to play it. If I play Demon Soul's, it is only for thirty minutes to an hour.
if your sick of DeS then stop playing it Lol and just accept the fact that there are other games out there lilke DkS and Twisted Metal. Not all games are made to be played for more than 2000 hrs bro.