(I know my post history makes me look like a tire-kicker, please be assured it's because of poverty)
Let's say my friend has $500 burning a hole in his pocket. He got a Peregrine for Christmas, and recently sat through an EANx class.
Let's also assume that my friend's ultimate goals are MOD3 CCR/Full Cave and cold, deep, dark, scary wrecks from history books.
My understanding that the best bang for the buck for someone so economically challenged is to become BFF's with a local tec diver who has lots of spare gear and patience, who would teach him to dive a drysuit, bp/w, long hose, doubles, shoot a dsmb/bag, perfect buoyancy and trim, kicks and turns. He would then sign up for GUE-F or UTD-E, get a tec pass, take Tech 1 and OHP/Cave 1, then buy a CCR for everything else.
Now, my friend knows that at this second, taking Fundies would be a waste of time because he has never dove doubles or a drysuit in his life, and would be out $2,000 and a lot of embarassment.
The traditional pathway of OWD->AOW->EANx->ITT->AN/DP->TMx becomes appealing in that it's smaller bites both psychologically and financially; but when looking at course prerequisites for classes like AN/DP and Apprentice Cave, the trend appears that (whether for insurance or standardization purposes) many instructors want specialties like Deep, Rescue, and most of all AOW.
It makes sense, for example, nonpenetrative Wreck is a waste of time if you are going to have Cavern or better before taking Advanced Wreck. It makes sense not to take Deep if you are going to take AN/DP. It makes sense not to take Mod1/Air Dil if you will have AN/DP/TMx and can go straight to Mod2/Helitrox Deco Dil.
I understand PADI exists to sell classes to vacation divers. I can live without the prestige of being a fish identification mermaid diver. The attitude of AOW being the "course buffet" does not do much to help sell it.
With the expectation of future technical courses, what will he learn in AOW that he could not practice on his own, or that will not be covered in greater detail in future courses?
I figure his options are:
1. Put the cash in an S&P500 Index Fund and buy a clapped out CCR in ten years
2. Put it towards a Drysuit (most likely a SeaSkin) and associated class
3. Take AOW and annoy the instructor
4. Put it towards a BP/W, set of regs, or SMB/Spool/Lights