depends on what you shoot actually.

I had stabilizer before, Merlin Steadicam, one of the early adopters. I bought it for some project but the project got cancelled, in the end it was never used.

Steadicam would be useful for certain forms of videography, for example wedding or events BUT not needed for other forms.

Story for example (shorts) may not require stabilizer, in fact a tripod would suffice and for more impact, a slider.

60D was great but now you can get other cameras for better high ISO recording.