Actually, no. ToV has three single-player mini-campaigns

The pricing is slightly more sane but expensive in the US. The Complete package is $12, while Gold and ToV are each $7.49 ($14.98 total), and CoH and Opposing Fronts are $2.49 + $4.99 ($7.48, so $0.01 cheaper than Gold).

So the complete package is the cheapest way to go for all 3 over here, but is more expensive than any of the combinations available to folks who measure their money by weight.

Further, since what you can and can’t access is only limited by your Relic Online account, not which game you’ve actually installed (all of them contain all the content of all of them, and your account unlocks what you can play), if you already own any / all of them, but want to add the ability to reinstall it / avoid patching it through Steam, you only need to buy whichever one is cheapest and then login with your old Relic Online account (with the other keys already in it), and you’ll then have all the expansions you’ve previously purchased, without having to repurchase them on Steam.

Just noticed that myself.