Choosing between two used boats in the boats personal watercraft space comes down to how you'll spend your time on the water. One is a 21-foot classic ski boat with inboard power; the other is a practical 2005 bass boat with a trailer. Both are used, gasoline-powered boats built in the United States, but their strengths point in different directions. The right pick depends on whether you plan to pull a skier or cast from a fishing deck.
Quick Verdict
If you want a roomy, classic tow boat for fresh-water skiing and family days, the 21' 1990 Supra Mariah is the more capable choice. If you want a ready-to-fish package that's easier on your budget, the 2005 Bass Tracker PT-175 is the smarter pick.
At a Glance
The table below keeps the key choices side by side.
| Feature | 21' 1990 Supra Mariah | 2005 Bass Tracker PT-175 |
|---|---|---|
| Price | USD 8,000 | USD 3,850 |
| Relative Price | ||
| Engine | Inboard | Single Outboard |
| Hull | Composite | Aluminum |
| Fuel Capacity | 11-20 Gallons | 11-20 Gallons |
| Primary Fuel | Gas | Gas |
| Boat Type | Ski Boat | Bass |
Where Each Boat Wins
The 21' 1990 Supra Mariah wins for tow-sport enthusiasts who want a 21-foot composite hull, inboard power, and the character of a one-owner ski boat that has been stored indoors. It also brings stainless hardware, newer gel, a new rubber rail, and a dealer-inspected 351 PCM Cleveland Block. That combination points to a boat ready for open-water family days.
The 2005 Bass Tracker PT-175 wins for anglers who want a trailer-ready package with an aluminum hull and a trolling motor. The single outboard and low-hour Mercury make it a practical fishing partner, and the included trailer simplifies getting to the lake.
Product Notes
The 21' 1990 Supra Mariah
The Supra Mariah is described as a one-owner boat with indoor storage, stainless hardware, new gel, and a new rubber rail, while the upholstery and carpet are noted as good. The 351 PCM Cleveland Block has 785 hours and has had a dealer inspection. A Trail Master trailer with new tires is part of the package, and the boat is intended for fresh-water use. It's the higher-priced option in this comparison, and a 1990 inboard with this many hours asks for a buyer who appreciates a classic and will keep up with maintenance. If your priority is open-water room and tow-sport capability, this boat delivers that character in a way the bass boat can't.
The 2005 Bass Tracker PT-175
The Bass Tracker PT-175 has a 50 hp oil-injected Mercury with low hours, a 70 lb. thrust 24-volt trolling motor, and a trailer included. It has been garaged and shows normal use, and it comes from a private seller. The gas engine and practical layout are made for fishing-focused days, and the trolling motor is a useful addition for holding position. It's the lower-priced option in this comparison, which is a big draw for a first boat or a dedicated angler. The trade-off is a more focused design: the bass-boat layout is better suited to fishing than to pulling skiers or carrying a large group.
Final Choice by Use Case
Choose the 21' 1990 Supra Mariah when you want a classic 21-foot ski boat with inboard power and fresh-water towing in mind. Choose the 2005 Bass Tracker PT-175 when you want a lower-priced, trailer-ready bass boat with an outboard and trolling motor for fishing-focused days.
