I remember when I really started to use feeBay almost 20 years ago. At the time, I still believed the OPG actually mattered. So I couldn't understand why I not only kept losing auctions for ASM 430 and 431, but having my bids get completely blown away in those auctions. Around 10 years later, the OPG finally broke out those issues from the minimum Guide price run. So if anyone ever wonders why I trash the worthless waste of paper... er, OPG at every opportunity (and to be clear, that's just one example, not the entire reason), there you go. Luckily, some people selling comics were also dumb enough to believe in the OPG, so I eventually got multiple copies of both issues for quite cheap. But I haven't seen them very often period, let alone at a price even approaching cheap, in over a decade.
You'll be waiting forever. They aren't newly or briefly hyped. As I just mentioned, they're fairly consistent for two decades (though actual prices fluctuate with the larger market, like most books with any value).
There are no Campbell covers in ASM (v.1), so don't worry about it. There are a few variants in the 401-441 run, but they're nothing special.