I'm under the impression the overall benefit to cost has not been justified. This does not help those of us who want to fully document our families' history with records, images, etc.
I can take my two main files (214MB + 190MB data only), import them into FTM version 16 and there are no issues. Reports generate in a snap, etc.. Version 16 worked fine with Ancestry.com.
I still hope Ancestry.com will fix the speed and out of memory issues seen since version 2008.