I really don't understand the obsession with...."Oh the ORIGINAL FALLOUT'S are old...and therefore aren't as great".
I'm used to hearing the opposite all over the place, in regards to anything... "Everything was better in the old days, the music, the games, etc." (Which generally isn't true, it's just that all the crap has been forgotten). I agree in regards to the Fallout series though, but I think that all the PC Fallout games are great (never tried the console game though).
In regards to the standard, I don't think you should be happy or whatever. Form your own opinion, but when a sequel is made a decade after the first one, by an entirely different company, that makes entirely different games it bound to be very different.
We would probably get something similar if Toho suddenly decided to make a direct sequel to The Wolf Man.