Would you buy an updated (second generation) Aura HD?

Just out of curiosity.
Amazon just announced/released the second generation of the Kindle Paperwhite. Which uses the latest E Ink Carta screen technology while the Kobo HD uses the previous generation Pearl screens.
Carta screens promises:

• 50% better contrast
• supports the new Regal technology for page updates. Regal virtually eliminates the need for a full page refresh giving the reader smoother page transitions for more focused reading (*).

(*) Note: The Aura 6" seems to use a hybrid screen (or different screen controller). It uses a Pearl screen with Regal support. (Kobo website: "with low-flash waveform"). The Aura HD don't.

So would you consider buying a (second generation) Kobo Aura HD with E Ink Carta screen technology?

Technical differences between Carta and Pearl screens
For your information (source: Technical Spec Sheets).

• Imaging Component (Pearl): E Ink Pearl ePaper Display Film
• Imaging Component (Carta): E Ink Carta ePaper Display Film
• Contrast Ratio (Pearl): 10:1 (min)
• Contrast Ratio (Carta): 15:1 (min)
• White State (L*) (Pearl): 70 (min)
• White State (L*) (Carta): 74 (min)
• Dark State (L*) (Pearl): 24 (max)
• Dark State (L*) (Pearl): 19 (max)
• % Reflectance (Pearl): 40.7%
• % Reflectance (Carta): 44%
• Image Update Time ((Pearl/Carta): 120 msec (1 bit)
• Image Update Time (Pearl): 450 msec (4 bit)
• Image Update Time (Carta): not stated (4 bit)
• Display Resolution (Pearl): Capabilities up to 300 dpi for 4 bit Grayscale (sizes 9.7 in & below)
• Display Resolution (Carta): Greater than 300 dpi