Mono, poly; following your heart is never wrong. I would just warn against absolutes. Mono is not necessarily easier, you may someday find that certain people or a person works in terms of poly for you and you might find that society becomes less judgemental.
I would be open to monogamy if it were to fall in my lap again one day. I've had several long term successful monogamous relationships after all. Its just that right now I don't. My path is yet to be determined and I'm good with that.
Good luck Honestheart. Drop in and say hi sometime