I want prices to deflate and it is not terrible.
Deflation is known to be bad. Much worse than inflation.
Only if the deflation gets out of control. We could probably use some housing price deflation. But we'd only get it if we had a pretty serious economic downturn - that's the tradeoff.
Vehicles become cheaper this this year and nothing wrong happened. If groceries and housing would become cheaper also nothing wrong would happen.