I would have two questions that obviously would lead to more. Despite already owning QB which program will best suit the needs of the company? a full analysis would be wise. And the second question, what is converted for the $500? Until these are answered it is hard to list the pros and cons. However, one pro to staying with Sage 50 is familiarity for the users. You can just start a new company file and transfer the customers, vendors and chart of accounts. Add in your inventory, then add you trial balance. Because the old transactions are not transferred to the new company you will be able to delete old customers and vendors with whom you no longer deal. If you use payroll the employees can also be transferred and it is best to do this at year end. For Payroll purposes you will want to keep the old company file running for T4 forms etc. 

If it is determined that QB is the best solution and cost effective we are back to what do you get for the $500 and how long is the learning curve.

Good Luck.

I would have two questions that obviously would lead to more. Despite already owning QB which program will best suit the needs of the company? a full analysis would be wise. And the second question, what is converted for the $500? Until these are answered it is hard to list the pros and cons. However, one pro to staying with Sage 50 is familiarity for the users. You can just start a new company file and transfer the customers, vendors and chart of accounts. Add in your inventory, then add you trial balance. Because the old transactions are not transferred to the new company you will be able to delete old customers and vendors with whom you no longer deal. If you use payroll the employees can also be transferred and it is best to do this at year end. For Payroll purposes you will want to keep the old company file running for T4 forms etc. 

If it is determined that QB is the best solution and cost effective we are back to what do you get for the $500 and how long is the learning curve.

Good Luck.