Many private pilots are upset about this requirements for new equipment on their aircraft. I can understand their side of the issue. In many cases their existing equipment has been working fine for many years and now has to be replaced. In addition many equipment manufacturers take advantage of this to price gouge a bit. Plus there is something that is not addressed by many here - install. Aircraft are regulated much more than automobiles. To simply install a part can have a lot of requirements. For an ELT to be replaced it must be done by a Certificated Mechanic with at least an Airframe rating or an authorized repairman working under his/her shops certificate. The ELT can't be some j-random unit, it must be one that is certified for use on that specific model and type of aircraft (like saying that this part is only for Ford F-150s made in 1980 - 82 with the serial number range of such and such) there is a host of paperwork and testing to be carried out to get one certified if it is not already. Assuming that this is a drop in replacement of a unit with identical form factor and weight and power draw etc... there will be STC paper work, weight and balance etc applied. It is not as simple to get a plane with the new ELTs to be legal. Even with the requirement, the actual install is faster and easier then the rest of the regulatory stuff. This all translates to a hidden cost that is added to the purchase price. The customer can end up with a huge bill after buying a $200-$300 part. Not fun.
The flip side is this. Yes, the old 121.5 ELTs work. Yes, the new ones can also broadcast in 121.5 too. My job and the FAA's job is not to fix planes. Our job is our customer's safety. That is the whole point to this and many other things we do. The bottom line is the 406 ELTs will help Search and Rescue assets quickly and accurately respond to aviation emergencies. Even with a good fix on a 121 ELT the search area yeilded can still be as large as 100 square miles.
406's can reduce that same search area to 1 square mile. This will save lives.
So, while I can feel empathy for my customers that do not want to get this new ELT and can in some cases ill afford it, I want them to be safe too. BTW- The money thing does not impact me as I do not profit from the install directly - I'm on an hourly rate.
I would suggest to aircraft owners that they contact their local Avionics shops. Look to the smaller ones as they can usually take time to work with a customer as an individual rather than as a overall policy. Talk with several and make sure that they answer all of your questions. Get several quotes first. Then schedule your appointment. At this point in the game I would say that if you are an infrequent flier consider storing your plane for a while and wait the higher prices out. If you truly need your aircraft to be functional after the drop dead date get cracking as slots in your local shops will fill rapidly once the deadline is close.
Either way, stay safe.
Maric