WHY LIDAR REMOTE SENSING IS SO EXPENSIVE? IF YOU HAVE AN ANSWER PLEASE DROP DOWN,,

HI FRIENDS I JUST WANT TO KNOW WHY RIDAR REMOTE SENSING IS VERY EXPENSIVE

First compare high spatial resolution satellite image and low spatial resolution satellite image,the high resolution satellite image is more expensive since can be used in many projects and it is also accurate.
LiDAR is a high spatial resolution data since has a elevation data of z factor that is captured by light detection of earth surface to compute elevation hence LiDAR data is more expensive since :

1.it has a higher point cloud data that can be used to generate a DTM or DEM of high accuracy
2.it has accurate elevation information
3.The data collected can be used for route analysis due to its general aspect in the elevation been capture
4.LiDAR has elevation information of areas that are not accessible for surveying e.g thick forest

This answer is exactly correct, but the I need more clarification on that

✓LiDAR uses light signals that work in the nanometer range, making LiDAR systems much more accurate and precise than RADAR systems. A lower wavelength also means that a LiDAR system can detect smaller objects, the size of targets, and create 3D images of the target.
✓On the other hand, the resolution of RADAR images is limited by the size of the antenna used. Antennas with a bigger size produce waves with higher frequencies, resulting in images with higher resolution. Keep in mind that the requirements for your antenna also depend on the limitations of your measurement system.

✓In short, LiDAR is your best choice when you need to create a detailed image , and for this is why the LiDAR is more expensive than RADAR