The world's most famous stamp, according to Sotheby's in New York City, is expected to go for between $10 and $20 million, making it the most valuable object of its size in the world. See also: 10 Weirdest Things for Sale on eBay.
However, a rough guesstimate can range from 2-10 years to pay back the investment. However, one should be careful to note here that a typical wind turbine will last for 25+ years. However, one would hope that in those 25 years there are no major repairs that need to be done to the turbine.Also, one would hope that it lasts at least 50+ years, but naturally with this kind of lifespan there will be some repairs needed.owever, one would hope that in those 25 years there are no major repairs that need to be done to the turbine. Also, one would hope that it lasts at least 50+ years, but naturally with this kind of lifespan there will be some repairs needed.
For example, assume the tiling investment is $400 per acre and the life of the investment is 20 years. If the tenant ceases to rent the land after five years, he/she receives a payment of $300 per acre.Leaving after 15 years results in a payment of $100 per acre and after 20 years there is no payment.ile drainage should be designed so the water table between tile lines can be lowered within 24 hours after a rain to a level that will not cause crop injury. Generally, most field crops are not injured if the water table is lowered to at least six inches below the ground surface in the first 24 hours after a rain.