I am only speaking for myself: It's baseball season or hockey season.
No time for boys in shorts putting balls in hoops, nor the snooze-a-thon NFL either. In both the NBA and the NFL I feel like there's just too much posing. No one's gonna throw one in your earhole for being a dumbass like in baseball. No one is going to try to relieve you of your teeth like in hockey when you do something particularly dangerous or egregious.
If the NBA considered putting boards up and getting rid of the ball going out of bounds, that'd be great. Let's just stop with the dribbling, or actually call traveling. Then I guess I want full contact so there's no whining about whether or not someone's hand or butt got touched. Then we need a player for each side that cannot leave the paint but can goaltend their own bucket, and raise that bucket a foot and a half so it's an actual challenge to put the ball into. Let the goaltender play on stilts, I'd pay to see that shit. Free throws are the dullest thing ever, replace with shorthanded all-you-can score for 1:00 type penalties, let's watch the shorthanded team try to play keep-a-way for a minute instead of one dude standing at a line throwing a ball in the same old hoop they've been throwing it into their whole lives. I feel like it'd be way more interesting if they tried to do this stuff on ice instead of a hardwood floor. Alternately, shag carpet might be fun, all that static discharge during contact. Think of all the rug burns. Anything to liven up a game of putting the ball in the hoop over and over, again and again, really.
At that point I might be interested in watching the NBA. If I'm going pay to watch (tv or in person) millionaires play children's games I need to be fully entertained.