I fly a lot of different aircraft to a lot of different places and some of them don't have ELTs in them. Small helicopters are NOT required to even have ELTs. Imagine traveling cross country at low altitude without flight following over hostile terrain when an engine fails. Not good!
So put yourself in that position. What would you pay to have someone find you in a few hours? Well, for less than $300 you can buy a PLB. A Personal Locating Beacon. It's basically a small 406/121.5 ELT with GPS. It's about the size of a small cell phone and can be attach it to your belt. The only downfall I see is you have to manually activate it when in distress but it will run for at least 24 hours. It's accuracy should pin point your position to 1000 meters or less.
There are several PLBs available. This is the one I got from Sporty's: http://www.sportys.com/PilotShop/product/16544