I don't often go out of my way to buy DLC, usually only if a mod I like requires it, and I have found I tend to end up with quite a few as they're given away for free.
Besides all that, I feel like comparing the cost of multiple DLC to an expansion, like "Lord of Destruction".
I think Lord of Destruction was around $60 - $70AUD back when I bought it around 1998 (
Apparently about $98 AUD now). It included 2 new characters and a new chapter with 5-6 new locations, items, mechanics and cinematics. (I cannot find the exact price for LOD as it was on release in Australia. My box doesn't have the price sticker anymore)
Going by the prices for DLC on Rome 2 at the moment; "Wrath of Sparta" campaign is $14.99 USD ($19.16 AUD). Totalling up "Caesar in Gaul", "Hannibal at the Gates" and "Wrath of Sparta" equals $45 USD (Rounded up). That's $57.52 AUD at current value.
I did this mostly because I think I often get the perception that since they're all individually priced and boxes (figuratively speaking) it ends up costing more, but three campaigns and faction additions for $60 AUD isn't too bad.
It is certainly annoying having to buy all the factions in separate bundles. All the faction and unit packs for Rome 2 ends up costing $43 USD ($54.96 AUD).
Totalled with the previous amount, do we think that all the DLC for Rome 2, added together for $91 USD ($116.31 AUD) has the same content value of Lord of Destruction in 1998?