You're probably better off finding loose He-man figures at any flea-market to scratch that itch. There'll be missing accessories, but you can make do.
Opening old figures like that feels bittersweet, since there's only so many packaged specimens out there. Where as, there's so many secondhand loose ones just sitting unsold. Personally I think a good MISB/MOSC collection can look fantastic and even a single piece can add personality to a display. There's a lot of hate here for leaving stuff in package, but I think a lot of that stems from what people collect here. Leaving most Japanese toys in package is pointless, for example; nothing special or nostalgic about seeing a Figuarts in package, the enjoyment comes from the figure itself.
Maybe its an age thing; these older figures bring to mind images of old toy store shelves and memories. People rip on these collections for looking like a toy store; but hey, maybe thats what you're going for. The feeling of a fully stocked store with all sorts of options, each figure's packaging vying for your attention. A lot of people here are younger (myself included, in all honesty) and weren't around in this era; and a lot of people here just started collecting as adults, and only ordering toys online. The packaging doesn't have the same mystique as it has for others. They didn't spend hours mulling over cardbacks and trying to figure out which figure they should try and get; the Sophie's Choice of childhood of which figure to get when you "can only get one"
