I have had many presentations from various manufacturers, etc with things like thoracic impedance (basically billed as poor man's echo for CHF), treadmills, etc. I basically do injections in joints, some PFT's, EKG's - basically if I was sending them out to the hospital/lab for the device then I consider using them in the office. On the other hand I do not sell things - I send them to the pharmacy for vitamins, supplements, even splints, etc as I find it just feels wrong to bill for them - assuming I billed correctly and got paid.