Its only a few bucks more.

The APT-150 and APT-200 are also the APT50 with different horns.

Personally I hope this is the route Wayne takes because so far some of my most impressive projects were based with Eminence made drivers.
Adire Tempests and Shivas, Adire AV8 midwoofer and now my Stage 4 Pis.

I dont want to see Wayne go with a standard dome tweeter though because everybody else and there brother is already using these in the DIY community.