In an ideal world today, paying cash for every large business purchase would be great. But if you have a growing business and need the tools to expand and service customers, financing is fine in my opinion. I've fought the idea and dreamed about being totally debt free, but it can actually be wise to finance smart. Why? TAXES.
You can build good credit, take advantage of low rates, expense the total purchase at strategic seasonal times to save greatly on quarterly estimated payments to Uncle Sam, and deduct any interest expense on your loan. This makes sense to me. Helps with cash flow, give you the tools you need, and builds relationships with lenders... you never know when you may need that certain something and cash is unavailable.