Niemi is worth keeping probebly for 2 more years, then as a Niemi owner I'll be shipping him out myself, hopefully while he still a Starter...
One thing to watch on Niemi, he starts seasons slow, and gets stronger as the season rolls into January, then he is $$$... depending on how much ice is in your veins, you will be pissed at him early as he'll only win 40-50% early with little to no shutouts... then 2nd half will jump to 70% wins and shutout every 7 games...
The question will be when do you pull the trigger? Do you make the move at your league's deadline and hopefully make the move that puts you over the top or may hurt your goaltending to end the season? or do you dump him in September, October before he plays any games and he's won you a championship and likely went on a San Jose playoff run? (he won me a championship last year!!!)
Last season I did number crunching on Brodeur's Shutout record and if it can be broken or approched by any current goalies... My findings were only Niemi or Rask could approch him based on past stat rates... Niemi tho would run out of years and would have to be a starter until he was like 38 years old and back up a few more... Rask has the best oppertunity and would have to be a starter and getting the same shutout to game rate until he is approximatly 34 + years as backup... (I don't expect that rate to continue), It was interesting as Loungo, Lundqvist, Rinne don't produce enough rate to do it in thier remaining years, while Price, Fluery are not shuting out teams anywhere close enough...
F: H Sedin, Plekanec, Kovalchuck, Perry, Cammalleri, Oshie, Stepan, Anisimov, Kunitz, Justin Williams, Little, Baertchi, Huberdeau, Olli Jokinen, Eberle, Rattie, Alfredsson
D: Boumeester, Green, Carlson, Vlasic, Del Zotto, Myers, Scandella
G: Niemi, Varlamov, Neuvirth, Harding, Ramo, Vasilevski