If you aren't already chained to a smartphone contract perhaps this is a good time to get your feet wet and buy the HTC EVO Shift 4G slider from RadioShack for the low price of $69.99. You will of course also have to sign up for a two-year contract with Sprint.
Unfortunately, the discount does not apply if you are upgrading your current device. You will have to pay the full $150.
New customers will also be entitled to free standard shipping via FedEx, while those upgrading will have to fork over $9.99 for the same privilege.