I can't really say whether you're right or wrong. Everyone's opinion is different.
Personally, I really like him, but I like white Zoids and ltd Zoids. Since Infinity Leo is both, I'm possibly a little biased.
Effectively he is a different Zoid with the same base body. To not buy a IL on the basis that it is simply a white Leo Blaze with a new face would be the same as not buying a Sturm Tyrann because it is simply a few bits of new armour on a re-coloured Berserk Fuhrer. Although, I'm not saying that it's a bad thing to think that way. Like I said, everyone's opinion is different.
Infinity Leo also has a very interesting feature: it can transform into.... A GAME STATION! (Yeesh, I'd like to meet the person who thought that idea up so I can ask them what was going through their head at the time!)
Also, if you're talking about the ones Toymanila are selling on eBay, that's who I got mine from.
To summerize: I love my Infinity Leo