You'll need to decide what type of a boat is right for you. Ask yourself what you want to use the boat for and where you want to use it. There are several different types of boats that are used for different purposes. Keep in mind that if you're not experienced with larger boats that you'll want to stick to a size that you can manage comfortably without feeling out of control in tricky situations.
Pleasure seekers generally opt for cruising boat. These boats have at least one cabin allowing you to stay overnight and are built for simply cruising on the water in lakes and seas.
But those who are actively in fishing may want to opt for a fishing boat. These boats don't have as much passenger space as the cruising boats but are great for long fishing trips. They can serve dual purpose of fishing and pleasure. Most large fishing boats have one cabin.
A third kind of boat that you may consider buying is a boat used for water sports. If your passion is waterskiing or wake boarding you'll want to have a boat that can give you the speed that you need.
Once you've decided what type of boat you want to buy you'll need to think about the size you need. The larger the boat is the more functionality you'll have with the use of cabins, kitchen room, a head, and deck room. If you're buying your first boat, and are on a limited budget, you of course won't want to buy a large boat to start with. Buy a boat within your experience and work your way up with your next boat purchase.
Another option could be to buy a second hand boat. This would allow you to have all the features that you want in your boat at a much lesser price. New boats do have the advantage of having all their warranties and guarantees. But you can solve this problem by buying from a reliable dealer who specialises in second hand boats or buy directly from the original owner.
There are many different models that you can choose from after you've decided on what type of boat you want to buy. You don't always need to stick with the popular manufacturers of boats since brand name isn't always what it's cracked up to be.
In spite of the various decisions that you are required to make before buying a boat don't forget that basically a boat is a ticket to unlimited fun and adventure.