Well, there are some obvious reasons:
cpap.com works on a cash sale basis. The local DMEs do most of their business thru Medicare and other insurances. A much lesser percentage of their business is on a cash basis. Therefore there is the hassle and expense of insurance paperwork plus the delay in Medicare and insurance reimbursement. Most insurances require AT LEAST a 30 day proof of compliance before they will reimburse AFTER they receive that proof of compliance. Then there is the delay whilst the insurance processes the proof of compliance and issues the reimbursement. It took from 09 Oct when I received my equipment until March 07 for Medicare to process and make payment. That's quite a bit of money tied up for quite some time vs cash upon delivery.
In addition, Medicare pretty much sets the reimbursement amounts and they only pay 80% of the billed amount. Other insurances negotiate and contract w/the local DMEs for the amount they will reimburse for items. So, only cash paying patients pay the local DMEs the amount that is billed. Medicare and insurances pay considerably less. All of this raises the billable amount for the equipment.
I'm not 100% sure of the following, but it is my understanding. Those who accept Medicare can NOT charge others who aren't Medicare beneficiaries less than what they charge Medicare or they lose their right to participate in Medicare reimbursement. If you purchase thru cpap.com's "sister" online DME, billmyinsurance, you will find their prices similar to the local DMEs.
Last, but not least, there is turn over of inventory. The local DMEs have money tied up in a vast inventory of non-CPAP equipment as well as the CPAP equipment. CPAP is only a small part of their overall business sales and (choke) service. Sales volume can reduce cost and thus prices as well. You will notice cpap.com is almost always cheaper than other online DME suppliers.
Other than that? Well, they like to hand us the line that the local DME's have the expense of maintaining staff to provide service and assistance to the patient. Ha! The thing is very few do if you read these forums for long.
Am I sticking up for the local DMEs?? Heck, no!!! At least NOT for the MAJORITY of them! There are a few good ones out there. But they sure seem to be in the vast minority. It seems MOST of them are NOT worth doing business with. My local CPAP DME is the typical local DME, a real PITA and not worth a darn.
On the other hand, my local 02 DME supplier is a smaller DME, covering only my own state and maybe not even the entire state, and they are GREAT! I'm stuck w/my CPAP DME for the rest of my capped rental for my CPAP machine itself. (They service a three state area). BUT, since the rest of my equipment, masks, etc. were outright purchases I did have the opportunity to switch getting them to my 02 DME and I have done so. Wow! When it came time for a new mask ... here lets try 2-3, however many you need to find which mask works best for you!!! Boggles my mind the difference in quality of service!!!! A PLEASURE to do business with rather than a big fat PITA.
Some people are like Slinkies; not really good for anything, but they still bring a smile to your face when you push them down a flight of stairs.
Resmed VPAP Auto-Humidaire 3i-Simplicity & Quattro-ResScan 3.7-S8 ResLink-Embla XPod Oximeter, Sensor