Simple answer: Money. A distant second might be metascores interfering with development.
Remember when Sonic never sucked,remember when a Spyro game could get really good reviews,remember when Crash Bandicoot was a really GREAT game?now all those Videogame series SUCK!. to tell the truth,Sonic never sucked.all the Sonic games Sonic the hedgehog1,2,3,Sonic and knuckles,Pinball,3D Blast, Mean Bean Machine,Sonic CD,Adventure 1 and 2 Kicked ass.Sonic on handhelds like Sonic the Hedgehog1,2,Triple Trouble,Chaos,Spinball,Mean Bean Machine,Tails Adventure,Tails Skypatrol,Sonic Labyrinth and Sonic Blast were Kick ass also,well maybe not Labyrinth and Blast but the rest were good.It seems that every since Sega has been out of the hardware business and Sonic hasent been on a Sega system since the Dreamcast,Sonic has been a Okay series.you see Sonic heroes was good but Shadow the hedgehog was terrible,Sonic the Hedgehog 2006 was Okay.Sonic Riders was great but Sonic Riders Zero Gravity didnt cut it for me.Sonic Unleashed i liked except for the Werehog part.the Sonic part was pure DOPE!i want to be Sonic the Hedgehog not a Werehog.Sonic and the black knight and secret rings were poor/okay.it seems Like Sonic Generations will make sonic stray away from the Lack buster gameplay games he had over the years.The Handhelds games are Kick ass and i have no complaints about them. Sonic Colors was Amazing but short but i LOVED IT!
Spyro the dragon was originally released on the playstation and was a success,the sequel Sypro Ripto's Rage was just as popular.than Spyro Year of the dragon(my favorite game of all time) was released and was the last Spyro game on the Playstation and was super popular and all three games got an average of 4/5 stars,90%,A,ect.but the company who made the game, (Insomniac games) went on to make the Ratchet and Clank series because they thought Spyro was limited because he could not pick up anything in his hands so Spyro was left alone until Universal Interactive came and got the rights to the Spyro series(Bad choice)after YOTD,all of the Spyro games all of them got Poor reviews except for Spyro 2 Season of flame for the GBA.that's the only one that's actually good after YOTD. this goes the same with Crash Bandicoot.Crash Bandicoot great,Crash Bandicoot 2 better,Crash Bandicoot Warped tied with CB2,Crash Team Racing was Epic and was a nice little racer.after those the Crash series went down the drain.so why cant Companies like these and others make a good game and bring Videogame Series out of the dump?
Money and attracting new (scrubby) gamers which is like half the gamers today. Just look at capcom fighters
Why is Sonic shit today? Why has pokemon taken so many games to make the few good changes it has? Why are there countless shovelware Mario games on the market when Nintendo's shown they can make Mario games awesome?
There just might be an echo in here, but...
Yep. Once something has a name for itself, that name can carry garbage games to less picky gamers (children, and the most casual of the casual) to make a quick buck.
Yup, producers only listen to fans request to a certain extent.
Capcom is a GREAT example (unfortunately). Marvel 3 came out in march and now theyve already got an ultimate (disc only) version coming out in NOVEMBER. So if you want the new stuff you gotta pay. Even though its 20 dollars less than when the vanilla version came out, its still annoying that Capcom always comes out with "super" or "Ultra" versions of their games and try to leech fans.