The prices have plummeted. The one I used to rent for $105/day that was about $20K is easily outpaced by a $100 unit today, in every way. My $25K microscope is now worth about $20K, but thankfully the X-ray has gone up in price a bit. This is an image from a 1/2" diameter pipe encased in concrete with a hole. The burst through hole is located at the upper left hand corner. The scope I used for this image costs less than $100.

Click image for larger version. 

Name:	West Tube_4.jpg 
Views:	33 
Size:	68.2 KB 
ID:	46685