Real Cash Economy deleted from Wikipedia

The page on Wikipedia about Real Cash Economy was deleted with the message:

"This page has been deleted. The deletion and move log for the page are provided below for reference.
02:42, 17 June 2011 Fastily deleted "Real Cash Economy" ‎ (Expired PROD, concern was: Phrase seems not to be in wide use. No serious, non-primary references. Other articles better refer to this phenomenon, such as gold farming, virtual currency, etc.{notability)"

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"It is proposed that this article be deleted because of the following concern:
Phrase seems not to be in wide use. No serious, non-primary references. Other articles better refer to this phenomenon, such as gold farming, virtual currency, etc.
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Notify author/project: {{subst:proposed deletion notify|Real Cash Economy|concern=Phrase seems not to be in wide use. No serious, non-primary references. Other articles better refer to this phenomenon, such as [[gold farming]], [[virtual currency]], etc. {notability}} ~~~~
Timestamp: 20110609041359"

And this was the original article:

"Real Cash Economy is an in-world economic system used in some MMORPGs. It allows real money to be converted to in-game currency and vice versa.

RCE Games
Entropia Universe (Sweden) is the most notable example of an MMORPG game employing a Real Cash Economy. The ingame currency Project Entropia Dollars (PED) has a fixed exchange rate of 10 PED to 1 USD (1 PED = 100 PEC).
Players can deposit various amounts of currencies in exchange for PED; from 1,000 PED withdrawal option is available. Currency of withdrawal depends on the country of the player (USD for US residents, EUR for citizens of most European countries).
However, now it is time for major changes in this, because recently EU creator MindArk acquired Swedish banking institution MindBank for implementing so the called ATM "Cash Card", allowing more easy withdrawals and expanding concept of RCE even further.
AfterWorld (Russia) largely uses the same ideas as Entropia Universe, but RCE here is most commonly referred to as RME (Real Market Economy).
Second Life, Is a virtual world developed by Linden Lab that features a similar economy to Entropia Universe and Afterworld. It also includes its own programming language and modelling tools.
The Real Cash Economy concept takes its roots from the Korean Webzen company and became a commercial success for the first time in MindArk's Project Entropia game (although now it is officially called a gaming platform)."