Yep RHBH and LHFH basically accomplish the same thing, exept that your forehand probably turns a little bit farther right before it fades back... right? It's always good to have another shot in your bag, so don't give up on it completely, but you'd benefit much more from learning a RHFH. It's nice to be able to throw hyzers that fade right and left -- the hyzer has always been my most accurate shot personally.
A good anhyzer shot is nice to have in your arsenal, so you should practice that for sure. I generally just use a RHFH instead of turnover shots because they don't go errant as often -- but there are certain holes that require the shape of an anhyzer (rhbh) as opposed to my FH.
IMO a rhfh is much much easier to throw than a right-turning anhyzer shot rhbh. Example: you throw an anhyzer rhbh, if you don't turn it over enough it's going to fade back left; if you turn it over too much it's going to hit the ground and roll away. A right-turning shot thrown RHFH might skip (keeping the line that it's on) but usually won't spike into the ground and roll far away.