You don’t think the project merits the expense/hassle of bringing in a bassist.
If you are using a bass VST, it’s probably for one of the following reasons. In my opinion, it’s a bit of a pointless debate and makes little difference if it’s true or not. Some people will always say a plugin can never sound as good as a real bass. Now, we can all share the sound of his acoustic bass in a plugin that weighs in at just around 7MB. Redjoy Reza, an audiographer and musician (as well as the developer behind our free BPB Cassette Drums plugins), created Sienna in his studio. The Sienna Bass acoustic bass plugin is Windows only, but hopefully, a macOS version will follow. Soundmagic offers Sienna Bass, a FREE acoustic bass plugin for Windows.