In a lot of ways no as well. Take for example F-35B. That would've never happened on its own. Too few customers for a separate development project. Whereas now combined with amphibious assault ships it will be a quantum leap for USMC capabilities. Otherwise they'd have to retire Harrier for just V-22, AH-1Z and CH-53K.

It already costs less than its contemporaries Rafale and Typhoon. Remotely operated planes are not cheaper. Take for example MQ-4C Triton, which can only be used for intelligence and recon. That costs around 190 million apiece. Quite the sticker shock when you can get almost two F-35As for the same cost. Basically even if you could get similar capabilities (there are no air to air UCAVs atm), it will cost at least as much for quite some time.

According to pilots flying it, it's equal to clean F-16 within visual range.

F-35 program is also invaluable in utility. Nine countries became partners. Eventually most Nato-members and even some affiliates will adopt it. That's standardization of capability across the board on an unprecedented level.

Quick overview of test results: https://youtu.be/zgLjNsB_hyM?t=4m17s