Many young boys did and still do traditionally get and play with their Tonka toy trucks -- I mean what are kids sand boxes for anyway if not a place to play construction site loading and hauling dirt?
Consider the classic Tonka Dump Truck (still manufacturer and sold today) which remains "virtually" unchanged in over 50 years. This tougher than tough toy metal truck is an all-time classic with young boys that will withstand years of abuse tough outdoor play. This is one of the reasons it makes such a great collectible -- there are plenty on the market because they are virtually indestructible!
Many claim that the Tonka Toy Dump Truck is (or should be) on the Top 10 list of all-time desirable and collectible toys. The newest Tonka trucks however are beginning to employ "improvements" in the way of electronics -- minor electronics at the moment (like working horns), but nevertheless still electronic. If Tonka pushes too far with the electronic versions the old classic and durable toys of the past will be the last ones to survive intact as collectibles.