I'm not about to put it into a stock market with how inflated it is currently.
Okay. And how will you know when it's not inflated anymore?
@RWD are you the one who keeps that list of years of posts exactly like this?
When it doesn't look like this: (I'm older though at 50, so that plays into my decision more than it perhaps would for someone who say is 30.)

This is how I look at it: If you started investing $100/month in the stock market back in say, 1998 when the P/E ratio was similar to now, you'd have $145,000 today.
Here's why I mention it. Morgan Housel points out that about 95% of Warren Buffet's net worth came after the age of 65--and that doesn't include the portion he gave away! Buffet of course was a great investor, but BRK's returns have been pretty meh for a couple decades. The key is Buffet straight up lived a long time. He became ultra wealthy due to the power of compound interest.
Continuing my example, let's say the person who wound up with $145,000 today, is 50 years old and lives to 85. At 80, that $145,000 could easily turn into $1.3 million without adding another dime. That's enough to move the needle. At age 85, it would be more like $2 million. Compounding again.
In my own investing history, initially it seem to take forever to save anything. Finally compounding started to kick in and it has been like a rocketship. The rates of return haven't really changed much, but dollar amounts sure have.
In the DPOYM Club I think sometimes we are too harsh on the mind of people who get satisfaction from not having a mortgage. I get it. If spending money that way makes you feel better, that's probably a legit reason to pay off the mortgage. But that's different from the financial argument. Keep in mind, if you leave your green soldiers on the battlefield long enough they will become the Incredible Hulk, even if it seems like they occasionally take a decade off. Even in bad times, I just keep sending in the reinforcements.