Why is gentleman cho'gath not in the gentleman's pack?

It's because Gentleman Cho'gath is a Legendary skin. I don't think it goes on sale, so they didn't put it in the bundle.

because the bundle is going to mainly be bought by people who want the blitzcrank skin, and 1820rp doesn't fit well into a bundle

a debonair galio skin is coming next patch as well, doubt that will be included either

Legendary skins (and above) cannot go on sale after their release.

Archduke Nasus Spy Xin Zhao. both better than Definitely Not Blitzcrank. Gentleman cho too i want but i already ahve a vi skin and i feel that Blitzcrank doesnt fit in not that he's there.

Because he's kinda outdated. I love the skin, and I own it, but it's just outdated, and Riot doesn't like outdated.

why they didnt make an Gentalmen skinn Use lucain , jayce , Trynam for the gentalmen skinn