well that depends on what u want and what your willing to spend.as for me i was 18 when i bought my boat and motor and my ol man helped.i didnt have a whole lot of cash so i was lookin for used.i went to every marina arounjd drove around cottage country and looked in boat trader.i bought my boat from a guy near rice lake.it needed a bit of work like fixing a few rivets and paint but it was in good shape i picked up a 16foot aluminum and trailer for a 1000 bucks.i found the motor a marina this is where my dad helped because hes a mechanic.i bought a 45 johnson that was only 6 yrs old at the time,got it for 2ooo.10yrs later and the boat still floats and the 45 is still running sweet.when buying check for obvious things like cracks in the hull or signs of abuse.with the motor same and get the person to start it for u or even better get a mechanic to look at it good luck on your search hope it all goes well for u.