Please don't start this here too.
Yes there are people going for complete sets, some passive some active. Yes several people here have mentioned complete sets, but this is a gaming website and is by no means a reflection of society. We are the crazy of the crazy; those of us who frequent these pages are a tiny subset of the subset who even play games and completionists are a fraction of the fraction. There might be several hundred people going for some kind of a complete set, but there is no way there are several thousand people trying to get a complete set of Vita games.
Outside of limited run when you are dealing with multiple levels of distribution (i.e. manufacturing, distribution, retail) publishers would need to sell way more than a few thousand copies to even think about turning a profit. No one wants to sell a few thousand copies of a game through retail. You are suggesting that these publishers are actively trying to undermine your complete sets so they can loose money. It does not make sense.