What different between Friction saw and Cold saw?

What's the difference between Friction saw and cold saw?

Friction saw : Machine price econmoy.

Col saw: Machine price higher a little.

Friction saw:Machine running with loud noise.

Cold saw : Machine running noise less.

Friction saw: Pipe Cut end have burr 

Cold saw: Pipe cut without burr.

Friction saw : Saw blades use 8CrV or other material.

Cold saw:Saw blades use HSS and TCT material.

Sum: Nowdays ,most customer choose Cold saw, because Cold saw cut without burr and easy to next step process.  if use Friction saw , we may need pipe Chamfer machine to clean and chamfer the pipe end before next step (such as before enter hydro tester machine), that will need cost more money to purcahse another set of machine and also need more workers to operate. But if customer not care about the pipe cut burr, Friction saw also a good option to choose.

So, which one you will choose?