It's simple logic now rather then a guessing game. Car buying is something that the majority of us have had experience with. If purchasing a brand new car is not an option and you are 'stuck' with having to purchase your car from a used car sales man, this alone may send chills up your spine. It is common to find a 'lemon' on every lot. Each car sales man is going to wine and dine you with rave reviews about each car.
Every lot is full of cars to choose from.
And you know that every car you consider could be the ever-feared lemon that will blow up two days after the warranty has expired, if there even is a warranty. So, we know we need to purchase a used car. We can compare the type of car to the options needed for your web site to operate properly. The price is, and always needs to be, something within your range. This is why if you only have one thousand dollars you will not expect to purchase a used 1999, mint condition, power everything.