Study the discogs info on the album you want.
It's all in the deadwax.
It's simply effort, luck and timing to find a good condition 1st/early press.
Some genres/artists are unobtanium now due to demand and age.
Nothing special about Better Records except the effort is done for you and you're gonna pay the price for it.
My local store has had Better Records scouts going thru the bins for years.