[Kurona]

Blades is almost certainly becoming very available and a little cheaper than retail. If Vulcan still is at this stage despite his become absurdly popular, even if Blades becomes popular himself; I think that's a pretty good indication. I'd skip Blades for now if he's giving you issues with deciding who to get, he's easily the safest bet of the lot on the aftermarket.

Saber of course will be a little hard to get too due to being a main rider unless a re-issue happens, so I'd try and get him while he's cheap -- you likely won't get that chance again. Calibur strikes me as the Premium Bandai rider that's going to be the hardest to get on the aftermarket, unless our eventual Q2 post-Christmas Rider ends up being awesome. It's hard to beat the cool-looking base form of an intimidating antagonist who's purple to boot.

That said? I think Saber SHFs on the whole won't be some of the hardest to get on the aftermarket. Unless something turns it around, unlike Build and Zero-One's stuff which are popular series; Saber is very unpopular right now from all indications and not something a lot of collectors seem to be clamouring for. I'd look at the likes of Ghost and Zi-O's aftermarket prices to see how this will go; aside from the main rider for obvious reasons I doubt it'll be hard to get stuff on the aftermarket if you really want it.