$20 for a few screen protectors.
$35 for the incase slider
$80 for the incase power slider
$40 on some crap clear cover
Overall, way too much. Took the cases back and am now carrying my iPhone 3G naked. It's been that way for a month and there's still no serious damage, so now I used the $$$ I saved as backup to get a 3Gs whenever my current one screws up.
You should all be putting a much bigger price tag next to the iPhone listing than $200; you're forgetting the iPhone tax (the ridiculous $30 data plan). I'm on t-mobile, with a custom $56 a month plan for the equivalent services of a $90 AT&T 2G plan.
$380 8gb iPhone 2G refurb (for sale: $240, cosmetically and functionally perfect, but used)
$25 InvisibleShield (fantastic)
$25 Belkin in car FM Transmitter ebay (ok, but a bit static-y)
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$50 on accessories
$429 iPhone 3GS ebay
$15 Best Skins Ever (exact same as InvisibleShield)
$15 Griffin WindowSeat ebay (on it's way, wondering if it'll mess up the shield)
$25 Griffin iTrip Auto ebay (better than belkin, but still a tiny whine in silences)
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$55
I see there's a lot of InCase Sliders out there. What do you think?