I brought my first records in 2010, but only started buying more seriously once I upgraded my player in 2017. I started of with a handful of records that I was gifted by friends before starting to shop for LPs on my own. 

How Large is your vinyl collection?

I have about 70-75 LPs currently.

From a monetary point of view, its probably Led Zepplin's Physical Graffiti, which used to belong to my father. Its not in the best condition, but its definitely got some value. For me personally, I only buy albums that I can see myself listening to over and over again, so they're records that I enjoy and find 'valuable'. I'm personally partial to Frank Ocean's Blond that I picked up from his web-store's one day sale two years ago. 

Tell us about your turntable setup

I started out with a very cheap Crosley that I carried back from the US, but last year I upgraded to a Rega Planar 1 Turntable, with a Denon PMA720 Amplifier and Klipsch R15M Bookshelf Monitor Speakers. I'm really happy with the setup except 

Any advice to people that are about to start their collection?

I'd say to just start buying the records you love when you see them, and then hopefully that will spur you on to buying a full system. Its how I got started, and it lets you start with the cheapest part of the equation before investing in the hardware needed.