Yes, buy the Starmark warranty. But read what it covers first so you get a full understanding. Some things you would think were covered are not. I just found out the hard way (to the tune of a little over $1000) that almost everything having to do with the sun roof is not covered.
Even so, it is still worth the price.
92 300E (Black/Grey interior: wife's car)
94 E320 Wagon (White/Saddle interior, Eibach springs, '96 E420 16 x 7.5 wheels)