i've contemplated getting a canoe in addition to my inflatable. the best part of the inflatable for me is that it goes in my trunk and goes wherever i go. no strapping it on to the roof and watching my speed on the highway. also i'd need to buy a roof rack too. and then i'd want to buy stabilizers for the canoe which run a couple hundred bucks. though you could make your own with pool noodles, piping and elbow joints but i'm not that enterprising.
the canoe definitely cuts through faster, gets from car to water faster and has more square footage in total and so i considered it for fishing my local rivers and small lakes where i'd be driving on local roads only. but then i thought a 12 or 14 footer would be hard with just one person. carrying and dealing with the roof. the inflatable is easy for one person. plus storage would be a problem especially since i moved out on my own into a condo and don't have a garage now.
one overlooked aspect of the inflatable like these fish hunters is that you can lie down and even sleep like i do sometimes. even with 2 people on it i can still sprawl out and lie down. this is for those lazy summer days where i'm on the water by 8am and need a nap by 11. cover my face with my hat and take a 20 minute power nap after anchoring down. my gf will also lie down and tan while we're trolling or anchored down.
the 14 foot aluminum my friend has you can't lie down in. but my cousin's 17 foot bass boat has perfect carpeted decks for napping. lol. i'm not a morning person so inevitably i will have to lie down at some point for those early start days.