Whether it's worth buying depends entirely on several factors:
* Maintenance records: Thorough and consistent maintenance is crucial. Look for documented oil changes, belt replacements, fluid flushes, and any major repairs. A well-maintained Suburban with 100,000 miles can be a good value. A neglected one will likely be a money pit.
* Condition: A pre-purchase inspection by a trusted mechanic is absolutely essential. They can assess the condition of the engine, transmission, suspension, brakes, and other critical components. Look for rust, body damage, and signs of wear and tear.
* Price: The price should reflect the vehicle's condition and mileage. Shop around and compare prices for similar Suburbans in your area. A low price might be tempting, but it could indicate hidden problems.
* Your needs: Consider your needs and budget. If you need a large SUV for hauling cargo or passengers, a Suburban might be a good fit, even with higher mileage. But if reliability is paramount, a newer vehicle might be a better choice.
In short: A 2000 Chevy Suburban with 100,000 miles *could* be a worthwhile purchase, but only after a thorough inspection and careful consideration of its condition, maintenance history, and price. Don't rely solely on mileage; the overall condition is far more important.