Instead of antiquity b /a product of high life?
 

I am interested in what subjects are not valued in antiquity , and for a long life ? Buy b /a commodity, because right now this does not produce. Or do only now made ​​in China with a little life.
When you see a rare thing, you see that it is not worn . So, will last for years to come .
First come to mind, Singer sewing machines . They are bought and sold so far. It is even possible to invest in Singer sewing machines . However, this product will not sell quickly .

What other rare items have such a property tricky ?
Is it possible to use such items for the investment?

Yes, you can invest in the Singer sewing only invest in the metal, and sell them as scrap metal ...
Yes, you 're right, they are bought and sold so far, just because it has not died out dreamers who hope to find in the car platinum shaft. <! - ~ 1 ~ ->

binoculars, cameras.
Just have to examine carefully for quick decision-making.

In general, wide-field, was surprised that the old buy-moving (electric), toys, watches the self-other; exclusive samovars, only those who sell them cheaply.

wasya, look at the brass mortar and cast iron pans.
Demolition is not!

Coasters.
Cufflinks.
Chests.

Smart Board.
The question is very general and it seems not quite correctly formulated . What do you mean strong ? Well, a hammer - a strong ? Yes, of course , so what? Hammers to buy ?
From the old things , valuable not only old, but its working qualities come to mind outright musical instruments, both acoustic and electric . The market of the old electric 60- 70s hoo as alive.
A slide in the discussion of old , but strong washing machines - boring, except for the physical wear and tear there are also moral .

Well, I do not know ...
I somehow closer mortar!

I am neither one nor the other.
My eldest son has five guitars : electric four ( two of them are good ) and a speaker . All very modern and when I compared the vintage to modern , to the shame of their difference in sound quality is not noticed. Although I know it's there. And it is clear that the true musician hears it . But at the amateur level, the sound of an expensive good new guitar sound better than a good old road . It is different but not worse.
Therefore, the performance is not correct to compare (often still far better than new ), but if the performance is added to the "history" - is yes . Here I have a tailor's scissors, dressmaker from the grandmother of some dark metal. No demolition and children with respect to them relate to them ( scissors , no children) probably a hundred years.

By the way, set for a beginner musicians from Fender, includes guitar Fender Stratocaster, a cube, a tuner, bag, strings, etc. is only 10 thousand rubles.
Surprised that not all homes are now on the electric guitar <! - ~ 1 ~ ->

Are there any products that will eventually increase in value, not because of the rarity?
That told me that the Iranian rugs with the time only getting more expensive.