That's not to mention red-hot industry growth. The U.S. food home-delivery market will climb from $43 billion in 2017 to $76 billion by 2022, according to investment firm Cowen.
That's a 76.74% increase in just five years.
That sort of growth has investors eager for Postmates, one of the newest companies in the online food-delivery industry, to go public.
Postmates delivers orders customers placed on their smartphone app from chains and local restaurants - just like Grubhub does - and it also delivers alcohol to customers 21 and older.
But hopeful investors will have to wait at least two more years to buy Postmates stock, as CEO Bastian Lehmann said an IPO won't be held until 2019, according to Forbes.
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That's leaving investors bullish on this new industry torn between buying Grubhub stock now or holding out for the Postmates IPO date.
There's actually a third option, and it might surprise you...