Well if a non IR pilot wants a similar wage to a fully qualified IR pilot then go for the better qualified. Even if you do not want to fly in poor weather it would be nice to have the ability to do so especially if it's not going to cost any more.
A 155 comes with all the bells and whistles as standard. If you do not plan on being able to use them then why not get a cheaper heli and employ two pro pilots minimum.
Do not be led into thinking that non IR mil experience is worth more than an IR if you come across crap weather. As outlined earlier there have been a few accidents where this has been proved.