BusinessWeek has a piece on the biggest myths about Software as a Service (SaaS). This article address some of the main misunderstanding associated with SaaS such as up front investment, deployment time and integration complexity and cost. The article is from the Marks Group, an on-premise software vendor. In my opinion SOME on-premise software vendors stand to lose heavily to on-demand software vendors with the expansion of cloud computing. The comments to the this article are even more insightful and hilarious at times.

Myth 1: SaaS is cheaper. No, it’s not. In fact, it can be a lot more expensive. Most service providers charge each user by the month. If you’ve got 10 people using a product, and they’re costing you 50 bucks a person each a month, that’s $6,000 a year. Most in-house systems have one-time licensing fees and optional support agreements. Spreading out the payments is nothing new, either; tons of software leasing companies will finance your purchase and spread out monthly payments over time. When you look at SaaS over the long term, it’s usually not a cheaper option.

Myth 2: SaaS reduces hardware investment. Well, this is only half right. Sure, the SaaS providers deal with the servers, and all the Windows headaches and patches and builds and versions and whatever. That’s their problem. But you still need fast access to the Internet. And that means workstations running versions of up-to-date operating systems, which generally means up-to-date computers. And they’ll need to be tied in, by wire or not, to hubs and routers to access the Net. And there will still be internal security and firewall issues. So you’re really not completely eliminating the IT guy. He’s like the smell from your cat’s litter box. It kind of never goes away.

Myth 3: SaaS is quicker to set up. This is like Ikea saying its furniture is easy to assemble. One look at the lopsided bookcase in my den proves that little theory wrong. The same goes for software. Sure, if you’ve got a basic setup, then no problem: Just flick the switch and go. But what if your needs are more complex? What if you need customization? Snazzy reports? Integration with other systems? Now you’re adding complexity. And whether an application is sitting on a server in Taiwan or a server in your office, someone’s got to do the work.

Myth 4: Your data are secure and backed up. Baloney. They’re about as secure as the personal data on 650,000 customers lost by GE Money (GE). Or that confidential Al Qaeda data left on a train by a British intelligence agent. Or Willie Randolph’s status as the Mets’ manager until about a month ago. I don’t care how many redundancies and data centers and encryption are baked into the system. Accessing your data over the Internet in 2008 is fraught with risk.

Myth 5: You’ve actually been using SaaS for years—look at your bank account. Right. And when my SaaS vendor is backed by the Federal Deposit Insurance Corp., maybe this story will hold. But in the meantime, what if I’ve got a billing dispute with you, and you decide to shut off my service? What if you send me my data on a CD, and I can’t even open the data because I don’t have your application? What if the government or some competitor subpoenas you for my information? What if the unthinkable happens and, gulp, my Internet connection goes down. Gasp. How do I get my work done? Yes, I realize that we’ve “hosted” our financial data with banks for many years before SaaS. But we’re talking a totally different set of rules.

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