For any company working in an international environment this really is a must. The workaround is just that, a workaround that doesnt work in many situations. We need a native solution to be able to have deals in different currencies.
Sadly it also seems that all the votes and comments from the old ideas.hubspot.com site about this topic have not been converted over the the new community site, thus losing out how many comments and people found this a very important issue.