I sincerely doubt it. If you actually cared enough to get someone to do the art, you either would have already or you would've done it yourself.
Good job trying to justify it to yourself and your customers - though unfortunately for you, everyone with two braincells to rub together saw right through that hot BS.
When is "enough" for you? When you make $2 a month? 20? 1000? 10 million? Thing is, you can always keep going with that logic. Just say you don't want to hire an artist and stop giving people nonsense answers that everyone knows is nonsense.