To venture back into vinyl or not,...that is the question.

I agree with uberwaltz

"On a budget of $500 or less I do not think you would end up being very impressed compared to say a $500 CD player."

I did not see any significant enjoyment with vinyl until I was about $3-4K into it.  Turntable, cartridge and phono preamp are all very important parts of the formula.  It's OK to start small and go the upgrade route, though.  It's a good way to go as you can hear the differences of upgrades as you go.  For me that journey was a lot of fun and a lot of learning happened.  

Here is a new one below 500 bucks!
https://uturnaudio.com/collections/turntables?msclkid=0d620934b548106fa61f56515476002c&utm_source=bing&utm_medium=cpc&utm_campaign=USA(EN)%3ESearch%3ESemi-Branded&utm_term=orbit%20turntable&utm_content=Turntable%3EOrbit

When I wanted to add a new production TT to my collection of vintage TT's I chose the Pioneer PLX1000. At $700 and $300 for a Denon 103R mc cartridge the performance/cost ratio is hard to beat! Read Herb Reichert"s review in Stereophile a few years back!

An old BSR changer - UGH!

..should have kept your old one....that ADC was excellent.

Depends what you are expecting?
On a budget of $500 or less I do not think you would end up being very impressed compared to say a $500 CD player.