In my experience it depends on what you want to get out of the boat and when you want to use it. In general a 20' bow rider will hold 10ish people, a couple dogs and cargo. All boats made post like 1990 or something are required to have a capacity plaque or sticker that is legible and easily read for all boats less than 30' in length. So if you are interested in a boat you can go look at it and see if the capacity is enough for what you are planning to do. Keep in mind that this is like your GVWR, so include 30-50 gallons of fuel weight in your swag as well.
In general, outboards are easier to maintain and work on because you are not having to cirque du soleil around a small block chevy that is crammed under a sun deck or wedged between seats. However, you are stuck buying the parts that are sold by that outboards manufacturer and if they are NLA then you are buying a new outboard. The nice thing about inboards or I/Os is that if you need motor parts you go to your local NAPA get some parts out of a truck catalog that matches the year/generation of your motor and install it or if you need a whole new motor you go to your local scrap yard grab a 5.3 vortec out of a truck and you're ready to go.
When buying a used boat, always test drive it unless you are specifically looking for a project boat. Also bring a small ball peen hammer and knock lightly on the fiberglass inside and outside the boat if something sounds like it is dull or squishy the wood underneath is probably rotten and will need replaced. If they won't let you lake/river test it WALK AWAY. Being in the great white north shady people like to hide a cracked block under cheap new upholstery and a detail to get out from underneath a 3 grand motor replacement.
I firmly believe where the BOAT acronym comes from are people buying a shiny used one for cheap and realizing they got taken for a ride. The maintenance on a boat is very similar to a car and your biggest expense should be fuel if you take your time and really scrutinize the boat before you buy it. Last thing don't buy a boat from family.
In general, outboards are easier to maintain and work on because you are not having to cirque du soleil around a small block chevy that is crammed under a sun deck or wedged between seats. However, you are stuck buying the parts that are sold by that outboards manufacturer and if they are NLA then you are buying a new outboard. The nice thing about inboards or I/Os is that if you need motor parts you go to your local NAPA get some parts out of a truck catalog that matches the year/generation of your motor and install it or if you need a whole new motor you go to your local scrap yard grab a 5.3 vortec out of a truck and you're ready to go.
When buying a used boat, always test drive it unless you are specifically looking for a project boat. Also bring a small ball peen hammer and knock lightly on the fiberglass inside and outside the boat if something sounds like it is dull or squishy the wood underneath is probably rotten and will need replaced. If they won't let you lake/river test it WALK AWAY. Being in the great white north shady people like to hide a cracked block under cheap new upholstery and a detail to get out from underneath a 3 grand motor replacement.
I firmly believe where the BOAT acronym comes from are people buying a shiny used one for cheap and realizing they got taken for a ride. The maintenance on a boat is very similar to a car and your biggest expense should be fuel if you take your time and really scrutinize the boat before you buy it. Last thing don't buy a boat from family.