Sony seems to have seriously embraced the Valve Steam sale model of digital distribution pricing, as the company has been offering some great deals on gamed via the PlayStation Store over the past few months.  Now things are taking a step up as the PSN 13 For '13 kicks off on Tuesday in North America in which recent releases and past classics will be available for (in some cases) less than you'd pay for a bottle of soda and a packet of crackers from a vending machine.  Check out these deals via the PlayStation Blog:

• LittleBigPlanet Karting – Regular $39.99, Sale $19.99, PS Plus $10.00
• The Unfinished Swan – Regular $14.99, Sale $7.49, PS Plus $3.75
• Ratchet & Clank – Regular $14.99, Sale $7.49, PS Plus $3.75
• Jak and Daxter: The Precursor Legacy – Regular $7.99, Sale $3.99, PS Plus $2.00
• Hot Shots Golf: Out of Bounds Complete Collection – Regular $24.99, Sale $12.49, PS Plus $6.25
• Warp – Regular $9.99, Sale $4.99, PS Plus $2.50
• Shank 2 – Regular $9.99, Sale $4.99, PS Plus $2.50
• NiGHTS into dreams… – Regular $9.99, Sale $4.99, PS Plus $2.50
• Jet Set Radio – Regular $9.99, Sale $4.99, PS Plus $2.50
• The House of the Dead: OVERKILL Extended Cut – Regular $19.99, Sale $9.99, PS Plus $5.00
• Psychonauts – Regular $9.99, Sale $4.99, PS Plus $2.50
• Tiger Woods PGA TOUR 13 – Regular $39.99, Sale $19.99, PS Plus $10.00
• Machinarium – Regular $9.99, Sale $4.99, PS Plus $2.50

Here are my suggestions: pick up Ratchet & Clank, Shank 2, Psychonauts, Jak and Daxter, and perhaps even LittleBigPlanet Karting at these prices if you're a PlayStation Plus subscriber.  At regular sale prices, consider Ratchet, Jak, and Psychonauts.  I've never seen these kinds of major titles on sale at these prices, and aside from the wondrous savings, I'm very glad to see Sony embracing the notion that important games on sale for very cheap can benefit us all.