Huzzah, the problem with your statement is that it isn't CLOSE to a copy of BT. Go screw an elf, then go screw any of the BT girls. The BT girls are ugly as hell. The engine got some serious upgrades. Go compare screwing in BT in a position to BC in the same position. BC blows it away.

The problem is that BT is more of an Adventure/Platform jumper/RPG game, so you get a sense of reward from working up your ball size, allowing you to be a bigger bad ass in fights as well as giving you the reward of being able to have sex with more women (and generally, sexier). BC, due to the game and sources it was spoofing, started you off as a hard core bad ass immediately, and there was little in-game sex growth (mostly consisting of unlocking the elves in-game). The difference is what is causing you to rage--- BT is an Adventure/Platform jumper/Minor RPG, while BC is a Shooter/Fighter/Minor RPG--- and that makes a huge difference in the game play and rewards you get as a player playing it.

From a plot (missions) view, both have about the same amount of play time in them. You just spent a lot longer in BT exploring, farming, and general grinding than in BC. So the full play time ends up being much shorter for BC.