If you want to try LED for the novelty, the cost savings, or the lower heat dumped into your room (or all the above), spend the $30 on the Samsung at Lowe's and see if you like it.
Try
this calculator suggested in another thread.
If you like the bulb (and it works), and the $30 doesn't bust your budget, keep it.
If for any reason you don't like it, bring it back with receipt and move on to the next project.
Be sure to post back and let us know how it turned out.