I recently paid $139 ($150 with tax and tip) to use the latest version of Microsoft Access (2010). I had used Access for heavy baseball research for many years. My older version was copyright 1992-1999. I intentionally stopped using it about five years ago because I wanted to be free of any particular PC or OS. I tried to rely on http://www.baseball-reference.com/ and google docs spreadsheets, both of which are very good but nothing beats Access for a single user DBMS.
Now I'm re-committed to Windows and will probably upgrade my PC. Still running WinXP. My netbook is running Chromium OS. Check out my baseball blog: