With the announcement of the new iPhone 4S today, Apple has also dropped the price on the previous versions of the iPhone. The iPhone 3GS version with 8 GB of memory is now down to the low, low price of absolutely free (as long as you're willing to sign up on a two-year contract with the cellphone service providers), so you've really got no excuse to join the rest of us in the smartphone future.
The iPhone 4 has had a price drop as well -- the 8 GB version is now just $99. Apple's iPhone is cheaper than ever, and while yes, you won't be able to run some of the sexiest new features with these older phones, they're still excellent devices.