By the time you get your device, difficulty will have jumped so high that you will already be earning cents per day. Then, as soon as you receive your device, iceriver will announce their new asic that is better in every way (hashrate and efficiency), making your device obsolete and your investment pointless. This always happens with ASIC launches. The second part always happens with home miner launches. The system is rigged against anyone who isn't shopping directly from the factory or getting very early shipping. If you are planning to buy from a reseller don't even think about it, you will be late to the party. Take it from someone who has gotten burned this way in the past.