No. Most of the $2.5B is because of the phenomenal revenues that Groupon is currently generating. But Google isn't just interested in revenues, otherwise they

No. Most of the $2.5B is because of the phenomenal revenues that Groupon is currently generating. But Google isn't just interested in revenues, otherwise they would buy a small oil company - they are interested in Groupon because they are profitable and provide an asset that plays well with Google's core product.