Database Engine Tuning Advisor suggestion to replace syntax.

SQL Server 2005 Database Engine Tuning Advisor informs me that I should
replace query 1 below with the syntax in query 2 below. I’m just not seeing
the reason since both the “SELECT” statements optimization plans are stored
for reuse. Am I missing something?

Mike.

Query 1
EXEC sp_executesql N'SELECT FirstName, LastName, Company, StreetAddress,
City, State, ZIP5, ZIP4
FROM Customers
WHERE City = @P1
AND State = @P2',
N'@P1 char(32), @P2 varchar(32)', 'Poedunk', 'Iowa'

Query 2
DECLARE @P1 varchar(32)
DECLARE @P2 varchar(32)
SET @P1 = 'Poedunk'
SET @P2 = 'Iowa'
SELECT FirstName, LastName, Company, StreetAddress, City, State, ZIP5, ZIP4
FROM Customers
WHERE City = @P1
AND State = @P2

.

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