There were, however, stands selling I/O gear, including t-shirts ($25), tote bags ($20), hoodies ($45), and Android figurines ($15). And some developers discovered that certain sessions gave away free items, such as Bluetooth beacons—that is, if they could get in. Long lines, often hundreds of people deep, were a common sight during the three-day conference, which began May 18.

Needless to say, many attendees felt this was a letdown, especially compared to the goodies from previous years. While conference goers love to amass little trinkets, giving the latest gadgets away was a strategic move for Google, a way to stir excitement and encourage developers to build for these products.

Here’s a list of Google I/O freebies in the past, according to stories from CNET and Network World:

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