Henry,
As with the SRBs, though, refurbishing rocket hardware after it's
been soaked in seawater is tedious and manpower-intensive, and
when all is said and done, there is a high payoff for "flyback" schemes
which recover the boosters onto land.

"Boostback" schemes tend to look even more interesting. The GLOW
is higher, but the dry mass is often lower and less complex. Plus you
don't have to deal with the hypersonic glide issue.

~Jon