One factor not yet mentioned is the sound quality of the vinyls (you must be on the young side
) you own. If they aren’t especially great sounding there’s little point in spending more $ than the records "require". Lots of LP’s are of only mediocre sound quality, therefore not requiring a great table/arm/cartridge (you are asking about the turntable only, but the cartridge is a very important part of a record player). If you want you can list your records here so Audiogon audiophiles have an idea of what your collection is comprised of.
I suspect many here are as mystified as I as to why you would have only 20 LP’s, and don’t intend to get any more. Not to get too personal, but are your 20 records special to you in some way? For instance inherited from a deceased parent, sibling, or close friend. Just curious!

