Shoulder Pads, Plasma Gun, Gravgun, Grav Pistol, Meltagun, Combi Weapon, Power Axe, Power fist all added, as well as ancillary bits and bobs for the keen modeller to personalise each squad?
Nope. No reason at all to tweak the whole thing....
Greenies having crisp detail? Serial? Srs serial? You may also notice they're cast in a pretty crappy plastic, and are one piece models with horrific mould line issues. Cheaply produced, some might say. Funny that. Though hey, I'm an easy going gamer - if someone wants to use them for their Imperial Guard, I say go for it.
Define most gamers? Because although GW have indisputably taken a hit in the past year or so - it was far less than 50.1%, which would support your claim.
High School Kids and Youngsters in general? The same way I did. Little bit here and there. I had a paper round paying me around £20 a week, and a part time job which barely paid me (sods always found a way out of it). Add in that childhood income has gone up considerably, and your assertion isn't looking all that strong.
Space Marine Assault squad - £25 for 5 plastic models and more bitz than you can shake a stick at....that's the same price as my old metal Assault Marines set me back in 1996....
Devastator Squad? Same price as 1996, but with added weapons options, meaning if I could get clever with magnets (I can't. But some can) you're getting far greater value for money. And the added bonus of them not falling over (looking at you, 3rd Ed hybrid Dev kit....)