Modern digital scopes are power houses for debugging. I own a Tek DPO3034. While DSO scopes might not match up in some areas to analog scopes, like debugging glitches and the like, DPO scopes blow everything away. The triggering modes, memory, analysis options, it's just crazy how much they can do. Mine will even decode I2C and SPI and display the info on the screen in ASCII, binary, , hex etc and store the data transmissions in an event table for me to look at. Modern DPO's really do rock.
But old analog scopes like the one in the OP are still very, very usable tools. They will do 95% of what my DPO will, in terms of features that I regularly use. The other 5% costs a ton of money though.