I guess it'd depend on whether you plan to move it up and down much or instead just leave it in place and want the murphy option for a 'just in case' alternative if you have people join for a meal or something....kinda like what 'Josh the RV nerd' (salesman at a Michigan RV dealership) said about bunk beds...'they're not for the kids...kids will sleep anywhere--on the floor, curled up in a dog bed, outside in the back of the pickup...the bunks are for the PARENTS...so they don't have to convert a sofa or a dinette into a bed every night'
Guessing small camper because either small tow vehicle or (like us) you'll use the trailer more as a way to be where you want to be (while as a bonus using your own bed, bathroom and kitchen instead of a hotel or a family member's house) rather than a 'place to be' in and of itself...we're outside of our trailer 'most all the time except for breakfast (lunch and/or dinner generally bbq) and to sleep...if you plan to use in that way, murphy makes sense to me...if instead you'll actually 'murphy' it up and down a lot, might get tired of that pretty quickly