One thing that can happen if you open a lot of toys at once is that you may not get to enjoy or appreciate each toy individually as much. This often happens to me when I get a package from Japan, and impatient me goes and opens 'em bang bang bang, and it takes me a much longer time to really appreciate those toys than if I'd spaced them out -- which is what tends to happen with local purchases. It also happens when I get toys that are sold in a single box set, like many of the reissue gestalts.

We never had the G1 gift sets in Australia, and I remember when I first found out that they even existed after interacting with the online community, I initially felt that Australia got gipped by missing out... but after reflecting I think it was somewhat advantageous for us because by collecting say the G1 Constructicons one figure at a time over a span of months (or even years) you get to enjoy each individual toy for their own merit, rather than viewing it as just a "component" of a larger toy. They feel more like 6 Transformers in their own right who happen to combine, rather than 6 components of a 1 Transformer that happen to transform separately. I don't mind 2 packs or versus sets -- I think 2 is a number that's small enough to still let you appreciate the toys individually... but yeah, getting a lot at once can sometimes change the feeling of experiencing these toys as opposed to opening them en masse at once.

^JMHO.