No, you should not take even money insurance. Just like any insurance, you should not take it unless you are card counting and know something about the cards that have not been dealt. The odds in any insurance bet are well stacked in the casino's favor. Even money is the same as any other insurance bet.
See below for an explanation of insurance and even money.
Even Money is an insurance side bet whenever the player has blackjack showing . The player is paid 1 times the original bet instead of 1.5 times (the normal BJ payout). Most casinos will pay the player right away without actually placing the extra bet.
The concept of insurance in blackjack was one of casino's greatest marketing ploys. Many players feel lucky that they can insure a good hand, thus avoiding a loss if the dealer has a blackjack. Like life or car insurance, companies would not offer it if there was not a profit to be made. The same applies for blackjack. The casino offers it because it has a huge edge over the player. Not counting the dealer's ace which becomes less relevant in a multiple deck game, there is a ratio of 4 tens to every 9 non-tens. As a result, you have approximately 4 chances in 13 of collecting on your bet. If you had 4 chances in 12, you would be looking at an even bet.