Interesting story mishau! I guess Lenin was a fairly short man then? I remember somebody else who had visited there commenting on the same thing.
Apparently the USSR started a bit of a trend when they decided to keep Lenin on display like this. Several Communist countries did the same thing when their leaders died. I read an article on this - apparently it's extremely expensive to preserve a dead body year after year.
Don't know what Russians in general think of keeping Lenin like this, but personally I really think it's a bit morbid. I would not want a dead body to be one one the main tourist attractions in my city.....