Sure, people collect what they are interested in, but will it be desirable in the future? Will computerized pumps ever be colectable. Probably not in my lifetime. Model A's and T's were hot at one time, but have lost some of their appeal lately. Part of it is because many of the people who drove them in the past are no longer with us. But they were also much different than todays cars. Anyone can drive a 60's or 70's musclecar however, and the perfomance won't get you killed on the freeway. The big variety of pumps in the past also plays a part in collecting. Look in Jack's book and see how much variety is out there. How many people make pumps today? They all look alike, unlike the works of art in the past.
I also like Railroads. 40 years ago, there were all sorts of different locomotives out there, on numerous, colorful railroads. Today, there are two locomotive builders, building generic products that all look the same. That, and the fact that there are only 4 or 5 major railroads left makes todays railroad scene pretty boring. 40 years from now, people will be going ho-hum to what is running today. The old stuff will always be more interesting.
Greg