Hi! I've recently started collecting G-Shocks after many years of using them "just" as timepieces. I'm particularly interested in a Rangeman, a PRW-3000, a PRG-270 and a GW-M5610-1ER but lately all of them seem to be out of stock in most retailers, specially Amazon, which is the store I use most as the prices are usually lower. With some of these watches (Rangeman and PRW-3000) the lack of stock has been going for some time...as I don't have much experience yet when it comes to collecting, I wonder: is this situation normal of am I looking in the wrong places? It's been frustrating and while I do find some of them on stock in some websites it's hard to know if a particular store is trustworthy.