I am not 100% sure about the price, but Looker is slightly less expensive in comparison to Power BI. The tool isn't cheap, but it's roughly in the same range as its competitors. I think they give larger organizations discounts for high use.

When we started, it was affordable, but now they have revised the prices. It is expensive now.

It's not cheap, but it's not expensive for big companies.

So, for small businesses, it might not be a good choice, but for medium and larger businesses, it's okay.

The price of Looker usually depends on the solution's provider, but it is usually cheaper than the other products in the market. Looker is offered at different prices for different companies.

The solution is open-source. It is free for all.

It is cheap. 

I don't know their subscription fees. I am not really aware of where they stand in terms of pricing. However, it's my understanding that Tableau is more expensive. 

The pricing for Power BI and Tableau varies quite a bit. You pay maybe $1,000 for a user subscription for Tableau and $100 for Power BI.

I do not have to make any payments to use the solution. In the beginning, Looker may work fine for its users. If advanced users who have experience with BI tools use Looker, then they may find it to be a product with a few limitations.

With respect to buy solutions, cost is relevant. 

However, the Looker solution would have outmatched the ongoing multi-million budget spending with respect to cost-efficiency.

Depending on what you want to do with Looker, you might see some price barriers. For example, embedding "reporting" in a customer portal might sound great and, depending on the customer, $50 per month might be very reasonable. But, if you have numerous "small" customers, that price point does not scale well.

Make sure you shop around and understand the real costs of the competition. Looker does not host your data, so be sure to include the cost of any data warehouses you may use and any ETLs that need to be developed.

Review how you intend to use Looker. Is it purely internal? Will you have external clients viewing Looker reports? For both questions, how many people will need to have Looker access, and which reports are relevant to which people in the organization?

The pricing model makes sense, but can be very expensive, potentially prohibitively so for smaller companies.