Hi Artie,
Thank you for the extra information.
If you purchased the $49 upgrade from 2013 to 2014, my understanding is that you'll get the updated interface for 2014 (i.e. the new look dashboard) but no additional gain in styles, Realtracks or Realdrums. I'm not PG Music staff, though, so it would pay to clarify this with them.
When you first purchased version 2013, I suspect that you bought the introductory package (the ProPak) because this is the cheapest deal that allows a user to get the minimal functionality of BIAB.
The cheapest package that has ALL styles, Realtracks and Realdrums is the UltraPlusPak. Historically, PG Music have sales for the Windows version around Christmas each year. I'm not sure if that happens with the Mac version but it would be easy to clarify with a quick email to sales@pgmusic.com. These sales usually offer terrific upgrade deals.
If, as mentioned above, your 2013 purchase was the ProPak, then this could explain the reduced number of styles. Hovering the mouse over the different prices for a package gives a list of what the package contains. That's how I obtained the two images below (the top one lists what's in the ProPak and the lower one lists what's in the UltraPlusPak).


As can be seen, the ProPak has Style Sets 0 - 3 whereas the UltraPlusPak has Style Sets 0 - 77.
The ProPak also has Realdrums Set 1 and 30 Realtracks whereas the UltraPlusPak has all Realdrums (Sets 1 - 29) and all Realtracks (Sets 1 - 205) which is getting close to 2,000 Realtracks (if I recall correctly).
Quite honestly, PG Music have been one of the most reliable and helpful companies that I have dealt with. It is not their policy to try and hoodwink customers. When you made your initial purchase, did you consult with their sales staff? I have found them to be terrific.
Kind regards,
Noel