Would I be wasting my money to get a turntable?

One class D is not digital in anyway,

Two his amp has room correction software so if he is using it yes its digitizing all inputs regardless.

Three if you dont' have records already i would pass on them its expemcive to do well, takes up considerable room, takes a long time to accumulate records, new records are expencive. If your a collector type maybe records are for you. 

Would I be wasting my money to get a turntable?

if you hook it up, turn it on, put albums on the platter, drop the needle and it produces sound, no, no you won’t be wasting money. Just don’t skip any of the above...

@glennewdick 

One class D is not digital in anyway

What do you call the conversion of an analogue signal to a PWM/PDM or ΔΣ modulation and its subsequent filtering to recover an amplified analogue signal? Because if that’s not digital, then CD is not digital and streaming is not digital either. However, that’s exactly what happens in a class-D amp, at some point. The filtering is at the very end, but the signal conversion can happen at the amp input or just before the final (current) amplification stage.

dlevi67, "What do you call the conversion of an analogue signal to a PWM/PDM or ΔΣ modulation and its subsequent filtering to recover an amplified analogue signal?"  

yes analogue still. no ones and zeroes involved here so not digital.  

there is no digital (I.e. code) in a class D amp, period.  your confusing the differences here. Class D has been around since 1958 well before digital anything was a thing in Audio. I'd suggest you do a google search and read up on the differences, class D was just the next letter in the alphabet after class C. 

So, it has an ADC/DAC in it?

A lot of folks on line, even some learned ones thinks the ’D’ stands for digital and writes as if the amp is when as far as I can tell when delving a bit into it isn’t correct.