Capcom will soon release the "Resident Evil 15th Anniversary Appreciation Pack" to PlayStation Network. This bundle includes Resident Evil Director's Cut, Resident Evil 2, Resident Evil 3 Last Escape, and Resident Evil 4 in one package, all for ¥3,000.
The pack will be available from March 14 through March 27.
Buying each game in the pack separately would cost ¥3,700. That's ¥600 for the PS1 Game Archive games and ¥1,900 for Resident Evil 4.
RE4 actually isn't available on PSN yet. That release is due on the 13th as well, along with Resident Evil Code: Veronica, priced ¥1,900 each. Both titles will also be released on Xbox 360 Games on Demand, priced 1,360 Microsoft Points each.