Not particularly, unless they are in mint condition, which most aren't.
I owned a "bunch" during the 70's as an investment tool and hedge against inflation.
The South African government cranks these out as a bullion "tool" since each
contains 1 ounce of Gold (plus some alloy metal; usually copper).
The US Mint makes a one ounce gold bullion coin NOW based on the St. Gauden's
Double Eagle that likewise contains an ounce of Gold. Still, there is something
different (intangible) about the pre-1933 Double Eagles (1 ounce of Gold plus
1/10th ounce of copper to "stiffen-up" the alloy so the coins wouldn't wear
down once in circulation). Maybe its because they have all "escaped death"
ie. Roosevelt's order to turn them all in and melt them all down.
If anyone is interested (a little slow to load)............
http://www.heritagecoin.com/sales/inventorylist.asp?source=&denomination=Saint%2DGaudens+Double+Eagles&SubHeader=NA&SID=97C771666D9F48F98674BE77F837FED1