Fair opinion. However I feel that the quality of the quests has severely suffered due to voice acting, and quests are a quite essential part of an RPG.
Molag Bal's quest in Skyrim would be nowhere near as good if it wasn't for the voice acting.
I much prefer voice acting, but I will say Bethesda really dropped the ball with Skyrim and Oblivion.
Skyrim had 70 voice actors, but most weren't that good -- Farkas and Farengar sound like they're reading instead of acting, while "Arnie" sounds out of place and Jim Cummings sounds so fake it hurts (even though I'm not particularly a fan of his, I know he can do better), and they're used for a good number of NPCs. They weren't well utilized, either. Most voices can be shuffled around onto other races and not sound too out of place, and I don't even think the voices were properly split among the Imperial, Nord, and Breton characters (I swear you could hear the same voice on an Imperial as on some Nords, and certain Bretons could sound like some Nords). Some voices were good, but even among those that were, most lacked anything special.
Oblivion's voice actors were much better (I mean, you could actually tell when they were supposed to be angry, scared, or sad), but they fell flat because multiple races shared the same voices, which stripped them of their racial characteristics. A lot of Oblivion's voice actors were in Redguard and Morrowind, but the voice work in those two games had more character it, which helped make them interesting (Khajiit actually sounded like sly cats, Orcs sounded like dumb brutes, Argonians sounded like predatory lizards, Wood Elves sounded lovably annoying, etc).
The number of voice actors you have doesn't matter as much as what you can do with the ones you do have. They could've done a lot with Wes Johnson, Jeff Baker, and Jonathan Bryce alone, but they instead dropped everyone ,good or bad, from the previous games except Wes Johnson, Craig Sechler, and Lynda Carter, and relegated them to bit-parts. Skyrim had a lot of okayish voice actors with a couple good ones, and Oblivion had a handful of very good ones, but in both cases they were utilized poorly.