I have a couple of boats.
I bought an Ocean Kayak Scrambler over 10 years ago and still have it. You can surf waves on it when the wind is right out on Lake Michigan, or just throw it on top of the car and drive to any small lake and launch it. It has plenty of room for fish and gear, plus I can drag it along with me while I fish. If I am going to work a certain area for a while, or it's really windy out, I can just anchor it with the small folding anchor that I have for it. It's even stable enough for me to stand up in!
I decided a couple of summers ago to get something faster, so I bought a Futura Surfski. Its fast and has a rudder, but not as stable as the Scrambler. It does have a hatch in it, but can't hold as much gear as the scrambler. I bought it more for just the fun of paddeling rather than actually spearfishing off of, but it can be done. It is made out of fiberglass so I have to be a bit more careful with it compared to the scrambler as well.
Ted bought a tandem Ocean Kayak a couple summers ago. This allows two of us to load up on one boat and go out spearing. It has come in very handy on some of the more "exclusive" lakes around here. Those are the ones completely surrounded by multi-million dollar homes and only one public boat launch- which is either a foot path through the woods or a flight of stairs! Once you get the boat down there you realize that you need to paddle across two small bays that are only 2'-3' deep to get out to the main lake. This is enough to put off mst divers, but we have been well rewarded to make the journey by basically two of the few divers whom ever dive the lake- let alone spear there! :thankyou
I say get one. They last, practically, forever. You can throw them ontop of any small car and just go. There's little in the way of upkeep. You can load them down with lots of gear- or fish! Plus, if the wind is really kicking you can surf them!
Here's some shots of me, in the red, and a dive buddy of mine, in the yellow, as we take our boats out on a windy day in Lake michigan. I've also included a picture of our two boats. I have the 10+ year old scrambler and he has the brand, spanking, new Scupper TW out for it's first voyage.
Jon