Since I often DO NOT feel like spending big $ on most games anymore [i.e. $40-60], I think he's probably right.
Selling a game dirt cheap within a matter of short-time periods [i.e. one month or so] does make me want to just NOT buy many game that comes out ASAP. Getting Mass Effect 3 PC [Reg Edition] for $30 after about a month after release is a good example. About 2 weeks after Darkness 2 PC was released and tanked in sales upon its release [unfortunately], seeing Amazon DVG decide to sell it for $25 was like "Whoa...what happened?" Now, you see this game hitting $13 on digital download sites [i.e. Amazon DVG, GameStop PC App] and even at retail from Best Buy recently for a Day! CRAZY! Yet, nope - I still ain't bought this Darkness 2 PC yet, even despite massive price-cut sales! Still got too much to play or I'm already playing something, as is...
Also, throw into account that many games - especially Triple-A titles - have Day 1 DLC; some DLC is locked-out on the disc [retail] or it came locked-out w/ your base game you bought digital in some cases (Capcom, anyone?); there's often lots of DLC planned; games are often not in the best state upon release day [i.e. I'll wait for a few patches behind your game, at least - Obsidian, anyone?]; Ultimate Edition with everything is often coming a year after your game is out [w/ base game + any DLC + any expansion] - these companies are also themselves cheapening the value of their base game VERY quickly just by the way they do business here. I think many gamers have caught onto the DLC schemes and have decided, "I'll wait for the inevitable price-cuts on base game or the Ultimate Edition w/ everything."
And for base game owners, it gets worse -- there's the new Season Pass thing that BF3, COD: MW3, Assassin's Creed: Rev, and SR: The Third are doing - changing expansion pack [$20] or higher prices for a bunch of DLC's before they are all even released! At least once they say their DLC Season is done, you can see if it's actually worth buying The Season Pass - b/c that'll [likely] be all of the entire DLC packaged together.
Also, take into account especially digital stores selling so many games so cheap so quickly, this massive backlog of mine just keeps growing at a ridiculous rate. I can't keep up with this! And unless a game's really dirt-cheap for me ($10 or less), I just ain't been buying many of the more expensive games. By the time I think of getting around to some of these games that I've bought, they might be even cheaper. If I'm buying a game at more expensive price, I better be planning to play it NOW - i.e. what I do w/ most games I spent over $30 with [i.e. Mass Effect 3, Skyrim, etc].
I've seen SR: The Third PC [base game] for $15 on digital sites. If I wasn't playing so many different stuff & trying to murder some of my backlog, I probably would've bought it by now...probably.
Hell, I still have barely looked at Alan Wake + American Nightmare PC from GOG; and Red Faction: Guerrilla + Armageddon PC.