I won't answer the thread question but I have my theories as to why MANY (not all) Sony fans seem to be always content while SOME (not many) Nintendo fans seem to be rarely content with their respective favorite company.
These theories only apply to consoles. [Handhelds don't matter in this discussion imo, because 3DS and Vita owners seem to be content with the library of their devices; we will never find out if some of them lie, so discussion is futile.]
I think it has to do with
- Nintendo not taking advantage with 3rd party console developers when - as some Nintendo fans hoped - they had the opportunity
- Nintendo not developing or help develop enough new IPs in diverse genres which may not succeed in the mass market but are embraced by (some) company fans and - more important - generate new customers who didn't care about the system before (this is a clear and still unique Sony strength and an advantage in the long run); btw: I'm not talking about IPs like Wii Sports/Fit, Brain Age, Nintendogs or Animal Crossing here - those were huge successes (developing new IPs which appeal to a huge audience is a clear and still unique Nintendo strength and a huge advantage on your bank account)
- many, if not all Sony fans (unknowingly?) accepting and never questioning a strategic change which is not even perceived as a change (maybe because if you were able and willing to perceive it you'd have to admit that Sony decided at some point to follow Microsoft on that route)
- the reassured confidence that Sony is still the only console manufacturer which gets ALL the 3rd party support that matters on consoles (there were many doubts during the early PS3 years - again, mainly thanks to Microsoft - but those are gone)
- mass media
