Annuities in IRAs can provide surprising benefits for required minimum distributions (RMDs), particularly with fixed index annuities (FIAs) or variable annuities (VAs). 

While annuities often draw criticism for fees and opaque structures, they can sometimes be the best tool for specific retirement planning needs. FIAs, despite their bond-like returns with added stock beta, can offer secure lifetime income to meet critical retirement cash flow needs. 

When paired with goals-based planning, annuities excel in providing inflation-hedged, lifetime income that’s challenging to replicate with other investments. For flexible retirement expenses and longevity protection, the mortality pooling aspect of annuities often delivers payouts surpassing self-built solutions. 

Finsum: While not without flaws, annuities can play a crucial role in comprehensive retirement planning strategies.