Seriously, the guy comes back from suspension, wins a GT one month later (something I think noone else could do) and has a bad year the next year. Got too fat (bad in San Luis, still won a MTF, and arguably Oman), got sick during Tirreno (crap weather, many people get sick from cycling 4+ hours a day in the rain and temperatures under 10 degrees), was still suffering from said illnes in Pais Vasco, (got 5th I think while being sick), was suffering from pollen allergy during couple of stages in DL (during which he showed some improvement finishing 2nd on a MTF finishing 4 seconds behind Froome), completely mistimed his peak (said he had the best training times on 'his' climbs) between DL and the Tour, where he finished 4th despite being severely overtrained (even attacking in windy flat stages).
Between 2007-2012 he has proven time and time again he is the most talented and gutsy rider of his generation, often dropping rivals whenever he wanted, or making absolutely crazy attacks with or without succes (PN 2009, TdF 2011, la Vuelta 2012, even Oman 2013), cause going down fighting is still better and even more fun than going with 2nd place.
He's still human though, and human athletes can have years in which they win not a single thing (name one cyclist who didn't have lesser years between his greatest years). He's not robot, that wouldn't even be interesting. Contador is my favourite cyclist because he has all the talent he needs, and because he races with 100% heart, instinct and guts
Even though he might never do a "Verbier" or win the Tour again, nothing has told me he stopped loving the sport, so he'll go and even if he doesn't win anything, I'll support him, cause even a 50% Contador can be a huge pain in the @ss for anyone he thinks he can win the Tour.
True fans aren´t just supporting the mans who wins the most, or (in my opinion at least) support a guy who never tested positive (cause it doesn't mean they aren't clinical). Nowaday's cyclist have to conquer climbs up to 25% solely for the amusement of the viewer. People who watch the sport want to see hero's, and that's exactly what I see when see Alberto Contador ride a bike
Sorry if the mods interpret some things as clinical