The examples that have been laid out are all reasons why my family is diversified, because both markets can go through their crazy times and I don't wanna put all of my eggs in one basket.

Don't put all your eggs in this basket.

As far as accounting for time, I have worked 5 out of the past 15 years and only when the fruits were "ripe" for harvesting.You don't have to do upgrades/rehabs to add value or force appreciation either. 

That's what I was thinking, I just didn't want to "put all my eggs in one basket" so to speak.

Also, if you split, you don't have all your eggs in one basket ... things can go wrong with any one basket, less likely with multiple baskets.

Putting all of your eggs in one basket is simply asking for trouble and taking out a 401k loan while so young leaves a lot of compounding off the table, especially if you can get 10% or higher returns over the next few years, instead of the 4.5% you'd be paying yourself.  

I bought a bunch of CMGI, a company that held a basket of dotcoms in 1999-2001.

Putting all your eggs in one basket may work with high returns but a lot can go wrong in a single property.

But, once it does, don't feel guilty about enjoying the fruits of your labors.

If I may suggest to remember to teach your children how (through influencing them to get on BP, etc.) and not only give them the fruits of your hard work.