Malta Gandhi Stamps Sheet - Is it worth for collection or investment.!!

Hello Gandhi Collectors,

Can't believe it when I noticed Malta Gandhi stamp sheet of 60 stamps was sold under $13 after 40+ years.!!

I don't think Gandhi Stamps or Gandhi Sheets are for investment.!!

Update on 12/15/2011 :

Check out price of recently sold Malta Gandhi FDC and no one willing to buy block of 20 Gandhi Malta stamps even at $4.99!!

Thanks
Ketankumar Patel.