I recently began investing and planning for retirement. I opened up a Roth IRA through Vanguard and bought about $2,000 of Vanguard Target Retirement 2045 Fund (VTIVX). I'd like to invest in real estate through REITs.
I saw both of these REITs through my reading: Vanguard REIT Index Inv (VGSIX) and Vanguard REIT ETF (VNQ). I keep hearing ETFs are the way to go due to their low expense ratio. Beyond that, I don't know the difference between the two. Can someone explain what those differences are and the advantage of each? I plan to have about 20% of the REIT in my Roth (at least for this tax year).