Upgrading to Mediator + RTG Card, but is it worth it?

[Ancalimon]

All i want to do is have a crispier resolution running in 16 bit, and be able to play classic games that will play and look better, games like gloom, breathless etc...and also gain some extra fast ram from my voodoo 3 pci card.

You won't be able to play Native Amiga games on the RTG. Only a few later classic games support RTG. (Like Napalm)