In most parishes, fundraisers are used for building projects, charity work or other specific causes that may help the services the community brings. They are typically not used for paying the budget because they do not have that capacity. They may help in cutting a deficit, but it is rare to have one get rid of a debt. When it comes to meeting a budget, nothing can replace the general income from the collection basket. Meeting the budget is usually made by the generosity of the people in thanksgiving to God. Fundraisers do help. But we need to realize they cannot fix.
This being said, fundraisers can be a great way to bring the community together. They can be a source of fun and getting to know your neighbor. They can be a way to bring your talents to serve God and others. It takes lots of people to do an event. We have to ask ourselves if we are willing.