[steam for ever]

Ah well I dont think It will ever die out completely.
Steam didn't and is actually making a comeback. Mabe the same will happen with deisel.
I do agree that It won't happen for at least 30 years though.
If you are a diesel enthusiast then why not go down to your local depot or shed. There is usually disposing sidings with a few 31's, 47's and 37's in there which could well be bought for scrap prices. If people do this like what happend a barry scrapyard, deisel will not die.