I too use AOL, or did, the additional charges they levy for connection in other countries is far more than the Maglobe connection charges, plus Maglobe do not levy monthly charges.
Check the AOL roaming charges price list for comparison, I think it can be found under Go BILLING.
I have just used my Maglobe account in JFK & IAD for about 3 hours and used less than $3 worth of credit.
Maglobe can not compete for UK dialups as this is charged at the rest of the world fee of $3.96
Hope this helps.