If you don't need the "place anywhere" aspect,
Ikea sells a three device charger for $40.
You have to center the devices on any of the three spots, so not as nice... but it is also $100 cheaper.
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I also think folks who haven't used Qi charging don't realize the potential paradigm shift.
Cable charging is always a conscious act - you must be intentional about it since it requires the additional action of plugging in the cable.
With a couple Qi pads placed in your usual spots where you'd set your phone down anyway, charging becomes more unintentional. I find this most apparent at the office - with cables I'd usually not bother plugging in since I am so often leaving my desk for meetings or whatever. With a Qi pad where I lay my phone, it's always charged at the end of the day -- without my taking any distinct action.
And at 7.5W charging capability on an iphone, that's faster than the included 5W brick anyway.