Should I Kill My 401k?

[Mark Smith]

I've been listening to Set for Life, by @Scott Trench.  Great book!  One of the things discussed in the book is how a 401k locks up part of your income, and that if you aspire to reach early financial freedom then a 401k slows you down because you cannot access part of your income.

I'm 27 years old and about 3.5 years post-college.  About 7 months ago I changed jobs, and I was able to cash out my 401k instead of rolling it over to my new employer.  I restarted a 401k with my new employer and currently only have about $900 in the account, so I wouldn't be taking a huge penalty hit or anything like that.  I contribute $42/week, which seems pretty significant on a monthly or annual basis.  Should I kill my 401k so that I can access this $42/week?  Another $168/month does sound really nice, and I do plan to grow a portfolio of rental properties to support myself and my family.  I have one duplex currently and I'm under contract for my second.

Any general thoughts or advice would be great!