E-store package pricing anomaly ?

I've just purchased (upgrade from my X1 Producer) the Sonar X1 Producer Expanded Z3TA+ 2 Bundle (download) at 119.00

- X1 Expanded
- PC4K S-Type Expander / Gate Module
- Z3TA+ 2

Luckily I spotted the 119/= bundle for all the above package, as my previous understanding to get the above upgrade (all at the same time) is by purchasing separately : 

a) Z3TA+ 2 upgrade at 49.00
b) X1 Expanded + PC4K S-Type Expander / Gate Module at 79.00

Total at 128/ ?

I also spotted these :

Elite Pack: Digital Sound Factory Vol 1-13 For Dimension Pro and LE (Download)
at 249.95

..while

Digital Sound Factory Vol 1-12: Expansion Packs For Dimension Pro and LE
at 399.95 (less vol 13 compared to the Elite Pack, but more expensive) ??