Yes it measures just about everything automatically for you. It even does protocol decoding of SPI/serial etc. The analogue scopes are just interesting toys that I couldn't have afforded until they got to 30 years old. They're engineering marvels
Will it be around in 30 years? Hell no it'll be in the WEEE skip in 5-8 years.
Then again if we look at the "2017" price of a Tektronix 475 (with DM44) - US inflation, currency exchange, add VAT:
Tektronix 475: £15,599
Rigol DS1054Z: £349
I could buy a new Rigol every year and still be up on cash over a 475 made in 2017!
TBH I am supposed to be getting rid of the Rigol but the person who was going to buy it did a runner. I thought for a bit that I couldn't justify the expense but I'm less bothered now I've used it to debug some complicated things.