Today used copies are highly collectible, and can sell for over a hundred dollars.

Although of marginal quality, Depression glass has been highly collectible since the 1960s.

He published numerous books on design, which have become highly collectible.

Both of these lines are considered to be highly collectible.

The Model 12 holds its market value nicely and is highly collectible.

In the years 1961 to 1971, 1,365 of these vehicles were made - they are highly collectible today.

As only a handful of these games survive, they are highly collectible.

Only 1,700 of these early models were made and have subsequently become highly collectible.

They are highly collectible and extremely expensive, when publicly available.

The original 7-inch pressing of this record is highly collectible.