So in the past I had a vintage turntable with everything built in, amp, pre-amp, radio. Just plug in passive speakers and go. Sadly the motor burnt out in it and I couldn’t find a replacement. Now that I’m making decent money I started investing in a new system. I got a new table with a built in pre-amp, a new tube amp, and I still have my vintage passive speakers. I’m just wondering what benefits would a receiver add to my system aside from being able to use the radio?
You kind of answered the question. If a part ever stops working you only have to replace that one part (amp, turntable, tuner). In your case you had to get a whole new setup. An added benefit to building a system is that you can add to it (CD, tape, Bluetooth) and pretty much have full compatibility.