Yes, but this camera costs more than a D16 Digital Bolex and a Red Scarlet put together
And? The Alexa offers recording in ProRes or DNxHD, which means there is no need to transcode the video during importing it into FCP or Avid, which saves a lot of time, especially with HD footage. And the ability of such codecs to store much more information than the DSLR cameras do is also worth some money. Know that the Alexa and similar cameras are aimed at professional filmmakers in for bigger budget productions. The RED is the same, though cheaper.
The Bolex is aimed at independent filmmakers, who want more than the measly image quality one can get from a DSLR, but at a lower price.
I don't know, if you have ever edited footage from several cameras, but once you do, you appreciate the material, which has more information to offer compared to the compressed footage.
I edited with Beta SP (analog SD broadcast tape), Digi Beta (digital SD broadcast tape), DV (digital SD prosumer/consumer tape, compressed), HDV (digital HD prosumer/consumer tape, compressed), XDCam HD (digital HD prosumer/broadcast format, compressed), ProRes 422 (from Alexa, before the introduction of the DNxHD firmware by ARRI), H.264 (from Canon 5D MKII and some footage.
The best footage to edit with was the one the least compressed (Alexa, Digi Beta, Beta SP), as I could do much more in post with them (green screening, colour correction, ...) without destroying the image than with the compressed ones (H.264, HDV, DV).
A proper workflow is worth money, if one has less money, one has to arrange with a more complicated workflow and with less parameters to adjust and probably less image quality.
3000 USD for such camera like the Digital Bolex is nothing. I would buy it in a heartbeat, if it proves to be a viable solution and not just hot air.