Does SEGA Superstars Tennis fail in fan service?

[Onyxmeth]

I've been reading up on SEGA Superstars Tennis because it's made by the awesome team behind Virtua Tennis 3 and because it's supposed to be the Tennis equivalent of Smash Bros. The more I find out however, the more I see this is not a SEGA fanboy's wet dream. Just look at the roster to begin with:

Sonic the Hedgehog
NiGHTS
Beat(Jet Set Radio)
Ulala(Space Channel 5)
AiAi(Super Monkey Ball)
Amigo(Samba De Amigo)
Tails
Dr. Eggman

and the secret characters:

Shadow the Hedgehog
Reala(NiGHTS into Dreams)
MeeMee(Super Monkey Ball)
Gum(Jet Set Radio)
Pudding(Space Channel 5)
Amy(Sonic the Hedgehog)
Alex Kidd
Gilius(Golden Axe)

Doesn't that seem a little lopsided considering how deep and varied the SEGA lineup is? They should be able to provide just as much fan service as a Smash Bros with their history. Not to mention...(spoiler)...they're using multiple characters from just a few series with the Sonic series taking 1/3 of all roster positions.

Does anyone else feel this doesn't well represent SEGA fans and would have liked a more varied and lineup? Post your dream roster for SEGA Superstars Tennis, but try and leave it at the 15 SEGA has put forth and see who can make a great roster. Also, sorry but I just love SEGA too much to not vent a little when they pull cheap cash in attempts and with one of their best developers to boot. This doesn't take away from the quality of the gameplay as I expect it to be good, just the fan service. Here's my roster:

Sonic the Hedgehog
Beat(Jet Set Radio)
Vector Man
Alex Kidd
El Blaze(Virtua Fighter 5)
Seaman
NiGHTS
Axel(Streets of Rage)
REZ
Shinobi
Ryo Hazuki(Shenmue)
Toe Jam & Earl(One follows the other)
Sketch Turner(Comix Zone)
AiAi(Super Monkey Ball)
Harrier(Space Harrier)