If you're talking about those Can Am Spyders, there's more to those than you might think. A Rotax motor, high quality components, great fit and finish. People I have ridden with love them, praise how stable, comfortable, and great handling they are. Every one of those people used to ride big bikes for years, and went to three wheels as time and health required. Without exception they don't regret the move. I have other friends that bought "traditional" Harley trikes: bad quality, vague handling, physically exhausting to ride. $35,000 !!!! So yeah, them Spyders are odd, and (relatively) expensive, but if it keeps ya in the wind then I say go for it, it's a great option.