There are many things i would consider.
- buy in off season to be the only bider
- avoid the unreliable ones, read find wich E are problematics. I am talking motor, battery, electrics. Remember many do waranty claims, you will likely not have that luxury.
- How much to buy a new motor?
- How much to buy a new battery?
- Many overpaid so they have to bite the bullet and loose big. Often when they try to sell they hope to get an unreasonable amount.
- It might take time, in my area just a few show up for sale, some are not the proper size, some are not reliable, some are not ready to sell, still hoping to get too much.
- many are afraid of not having a new one so you have little competition willing to risk buying used.
- today many have no money in the bank so asking 5,000$US a seller would need to accept 36 monthly payments.
- will you need to replace tires, transmission etc...
- many put cheap components like suspension, know what is for sale