Welcome to TOTV!!!
I'd suggest that, since you seem to be completely open to anything - new or used - you pick a price-point you feel comfortable with and go from there. Fairly well loaded up new carts can run up to $10k including sales tax - even more if you go with one with a custom body, Curtis Cab enclosure, Ultimate seat, etc., etc. But nice used ones can be had for $3-5k - some will be less, some will be more. Pick your preference of electric versus gas - there are a bunch of threads on TOTV regarding opinions/pros-and-cons that you can do a Search for. Used pricing can depend on age, condition, and how much work it might (or might not) need. Condition/age/care of the battery system on electric carts is important.
Another option to consider might be a "remanufactured" cart. A number of cart dealers/businesses sell those. They'll take a used cart and completely go through it, top to bottom - rebuild/replace any wear items, new tires, new Sunbrella, new paint and/or new body, and so on......pretty much everything except rebuilding the motor (on a gas cart). They'll generally run about $1.5k (give or take) less than a new cart would be.
If warranty is a consideration, new carts will come with longer warranties than the reman carts. Most used carts will have no warranty.
I might not be spot-on with the dollar amounts noted. But it will at least give you an idea of where things will fall.
Hope that helps!
Bill