Guys, I haven't had the problem with track rides distracting from everything in the park -- in Chief Beef's Raceway I've got a Luna Autos built around the hotel that's popular but I've got the ticket price high enough that the queue never maxes out.
Ticket prices has ZERO* to do with whether the queue is full or not. Queue fullness is all about prestige, which is essentially a measure of relative ride popularity. So if 1 ride's queue isn't full and most other rides' are, it's because the one with the un-full queue doesn't have enough prestige to compete with the others. You could set its price to zero and still nobody would ride it. Peeps
do not consider price when deciding what ride or shop to patronize.
*OK, maybe just a tiny bit, in that if the peep has less money in his pocket than the ticket price, he can't go on the ride. But if he's got the money he will, no matter how much it costs. But prestige is what attracts the peep to the ride in the 1st place.
I've also rebuilt the River Rapids so it's longer and has another drop, and got about 730 prestige, which at least makes the ride worth building money-wise. Added a bunch of bushes and trees along the track, popped a fountain inside of a curve, and got about 760 prestige, which leaves the last star mostly unfilled but the peeps seem reasonably happy.
730 prestige is very low for any track ride. It must be either very short, very slow, very undecorated, or all of the above. Most folks have a hard time keeping track ride prestige down to 1000

.
Prestige is a combo of 3 main things:
1. Excitement:
Track rides get WAY more excitement for WAY lower speeds than coasters, so this is pretty easy to bump up. With logs and rivers, just setting the lift hill speeds to max, regardless of what the rest of the track does, will usually give you an excitement > 5 (in the green), and greatly up prestige. You can also increase travel speed by not having level track, but sloping it down about 1-2^ for the non-drop sections. With cats, cars, and sleighs, you can set vehicle speed higher than default, and you can also use 5^ outboard banking of turns to increase excitement.
2. Duration:
The more time the ride takes, the higher the prestige. Track rides are slow so last a relatively long time even with relatively short tracks, and even with fast lift hills and vehicles. Usually this isn't a problem unless the track is VERY short. Generally, track rides should last about 2-3 minutes as a good baseline. If you've got less duration than that, add more track.
3. Scenery:
Includes both queue and track scenery. If you pimp all rides in the park to the same level (100% queue scenery and very high track scenery), then this really has no effect on relative popularity because all rides get the same number of prestige points for scenery. But if a ride isn't fully pimped out and has low prestige, you can up prestige by adding scenery. In general, 100% queue scenery is worth about 200-300 prestige, high track scenery is worth about 100 points, and very high (requires at least 2 triggers on the track) is worth about 100 points.