There is no shortage of free technology advice available to a mid-sized company. Your managed service provider will assess your environment. Your software vendor will run a workshop on your roadmap. A reseller will benchmark your spend. Every one of them will send somebody competent, and much of what they say will be correct.
It is still worth paying somebody for the same advice, and the reason is narrower than it first appears.
The problem is not honesty
The people giving free advice are not dishonest. That framing is lazy and it insults a lot of good practitioners.
The problem is structural. An advisor whose income depends on a particular outcome will, entirely in good faith, find that outcome more often than an advisor whose income does not. This is true of everyone. It is why the finding is called a conflict of interest rather than a conflict of ethics.
A reseller assessing your environment is not lying when they identify an opportunity to consolidate onto a platform they resell. A managed provider recommending more managed services is not fabricating the need. But neither of them will ever tell you that the best answer is to do nothing for eighteen months, or to keep the system you have, or to reduce the scope of what they currently provide.
Those three answers are frequently correct, and they can only come from somebody who is not paid by the outcome.
Where the difference shows up
It shows up on the decisions that are large, infrequent and hard to reverse.
Whether to replace a core system or fix the process around it. Whether to build or buy. Whether an integration plan is realistic. What a contract should say and where the leverage is. Which risks to accept and which to fund. Whether a proposal that has already been socialised internally is actually a good idea.
On day-to-day operational questions, free advice is usually fine and often better, because the provider knows your environment intimately. It is the seven-year, seven-figure decisions where independence earns its fee.
The other thing you are buying
Independence is one half. The other half is that an outside advisor can say things an employee cannot.
Every organisation has one or two open secrets: a project that is not going to work, a vendor relationship that has gone bad, a key-person dependency nobody wants to name, a system that everybody knows is a liability. Internal people know all of them and have good career reasons not to be the one who says so.
An advisor with no career inside the organisation can put it in writing. That is not a small service, and it is one of the more consistent reasons companies keep an outside advisor after the first engagement.
How to tell whether it is real
Three tests.
Ask how they are paid, by whom, and whether they take any compensation from vendors, including referral fees, rebates and margin on resold products. The answer should be short.
Ask what the deliverable is and whether you keep it. Advice you cannot hand to your board, your insurer or your buyer is not much of an asset.
Ask them what they would tell you not to do. An advisor who has never talked a client out of a project is selling something.