Whe original iPhone was.
In the UK at least, you had to sign with O2 (which wasn't a very good network) for 2yrs, pay for the iPhone which I think was around £800 and, from memory, the cheapest monthly payment was £60 and it was for a pathetic amount of calls/data.
I remember deciding, whatever the cost, I'd buy an iPhone - and didn't It was silly money for something that wasn't really much more useful than a Nokia for £130.
I didn't see an iPhone for several weeks after launch.