Case for Garmin 700 series? And 700 model recomendation

This has probably been discussed but couldn't locate anything on a search. I'm looking to purchase a garmin 700 series. I've used my Montana 610 for many, many years now. I do not see an acceptable case to wear this thing on your belt? There is one case I see but it has a simply velcro fastener that goes around your belt. No way would I trust a small piece of velcro to secure my gps.

Also, which of the 700 models do you suggest?

Thanks!