I tend to think that companies that produce both high and low end products, will never become truly a collectible or valuable.

In bikes, take Miyata, Atala, Schwinn, Fuji, Motebecane, and yes Klein for examples. All produce some high, but many more low end bikes, so none of those brands are truly valuable or collectible. But take manufacturers like Colnago, Pinarello, or Look, and they are always collectible and valuable because they are strictly high end.

Works in other areas to. Invicta has some very expensive watchers but also cheapos to, so real watch people don't take them very seriously. BMW runs the risk of becoming just another car company as they make entry level cars now. They dilute their brand. Maserati, which should be BMW's competitor, is considered a step above because it has remained true to itself in only producing high end machines.