There is no absolute standard for "too troublesome." It's always a question whether it's too troublesome or expensive or whatever
for some particular person.
Mine is not too troublesome for me. I love my car and I have to fix things about it A LOT less often than I did my three Saabs.
If it's too troublesome for you, or the pleasure of driving a Benz isn't worth whatever trouble it may be to you, then by all means get a Camry.