>This really depends on how good your 401(k) is and what kind of investments you want to make.
I disagree because 401(k)s can change on a whim though... My company decided to change literally all of our fund options overnight, and we couldn't keep what we already invested in the old funds, we just had to buy into the new funds. So even if your 401k is awesome today, it might not be awesome tomorrow. If your IRA provider decides to change their fund offerings, you can just move to a different one.
Luckily our new funds had perfectly fine choices, but that might not have been the case.
>If you just want the standard (and very good) low-cost three-fund portfolio, all 401(k) programs I’ve seen offer these kinds of index funds.
Honestly, both our original and current 401(k) options didn't/don't have a good international fund, the ones they had had very high expenses (over 1%)
There's also no low cost REIT index on my 401(k) (however, REIT isn't part of the 3-fund profolio)