i'd like to finish this topic:
best choice under $5000 yearly is RRPproxy
if you have more than $50,000 choose InterNetX , you can find the price below :
com: $8,90 (Create/Renew/Transfer)
org: $10,50 (Create/Renew/Transfer)
de: 2,50€ (Create/Renew/Transfer)
net: $10,40 (Create/Renew/Transfer)
co.uk: 5,00€ (Create/Renew/Transfer)
nl: 5,50€ (Create/Renew/Transfer)
it: 4,50€ (Create/Renew/Transfer)
es: 4,60€ (Create/Renew/Transfer)
se: 10,50€ (Create/Renew/Transfer)
fr: 4,80€ (Create/Renew/Transfer)
in: 4,60€ (Create/Renew/Transfer)
ch: 7,00€(Create/Renew) 0,00€ (Transfer)
eu: 4,50€ (Create/Renew/Transfer)
be: 4,600€ (Create/Renew/Transfer)
at: 8,00€ Create/Renew) 0,00€ (Transfer)
no: 6,50€ (Create/Renew/Transfer)