2025 Grand Design Solitude S-Class 2930RL vs 2024 Keystone Arcadia 378RL

Detailed Comparison

Before committing to the 2025 Grand Design Solitude S-Class 2930RL or the 2024 Keystone Arcadia 378RL, it pays to understand exactly where each one shines and where it falls short.

In terms of footprint, the Grand Design Solitude S-Class 2930RL stretches 31.5 ft while the Keystone Arcadia 378RL spans 34.5 ft. Weight-wise, the Grand Design Solitude S-Class 2930RL is the lighter rig at 13,100 lbs versus 13,600 lbs.

The Grand Design Solitude S-Class 2930RL sleeps 10 while the Keystone Arcadia 378RL accommodates 8. Slide-outs play a role in livability: the Grand Design Solitude S-Class 2930RL has 5 and the Keystone Arcadia 378RL has 1.

For boondocking enthusiasts, tank sizes matter. Fresh water capacity goes to the Grand Design Solitude S-Class 2930RL at 92 gallons versus 75 gallons. Solar-wise, you get 350W on the Grand Design Solitude S-Class 2930RL and 500W on the Keystone Arcadia 378RL. Battery banks are 400 Ah and 200 Ah.

At $88,000 MSRP for the Grand Design Solitude S-Class 2930RL and $87,000 for the Keystone Arcadia 378RL, the Keystone Arcadia 378RL saves you $1,000. With only a 1% price difference, the choice comes down to features rather than cost.

If you're traveling with a family, look for the model with more sleeping positions and better storage. Boondockers: look at the fresh water capacity and solar/battery systems — they determine how long you can stay out. For the full-time RV lifestyle, every gallon of tank capacity and every inch of counter space counts.

Both options have earned their place in the market. Your trip style and budget should be the final tiebreakers.