[Q]

Dragonlord I am not surprised, that you are disappointed from any special technology after 30 turns starting with low technology. All special technology will only be of real value later in the game (more than about 100 turns). In the early game the special tech races are weaker than the normal races because they used racial and research points for something that has not an immediate benefit. However in the later game or starting with full technology the special tech races get quite strong and each has it's main advantage. For the organic technology I agree with you that's the organic armor in the first place.
So is it worth 1500 race points? That's the beauty of the game: there is no clear answer yes or no, it all depends what kind of game you play.