StarCraft 2 the Trilogy!?!?!?

StarCrat 2 will now release as a trilogy.
In the original, all three races had a campaign in the one game, and in the expansion. Now they will be spread among three games: Wings of Liberty, Heart of the Swarm, and Legacy of the Void. Luckily, each will contain the full multiplayer and campaign editor.
They claim it’s so they can have more content, and that each of the campaigns will be as long as all three were together in the original.
But if I buy it new it will total $150(unless they mark it down, which is unlikely)!! That’s almost as much as my monitor!

http://starcraft.org/sctri.php

If they don’t make the compaigns super long and have lots of content for each expansion then gamers will feel like StarCraft is going to get milked to death.