I've looked at the Moby and it was top of my list until I had a look at the Je Porte Mon Bebe and love the look of that one even more
The fabric looks so snuggly. Shh - what's made you want to swap to the JPMB? And in what circumstance would you use the Boba over the JPMB? Do I need a carrier and a sling?
Well, a stretchy wrap is only designed to be used for a few months, the JPMBB is an exception to the rule though as it only stretches one way, so safer to use as they get heavier/wriggle! The reason I'm thinking of changing is because I'm better at wrapping now as I've used woven wraps with DD, they looked intimidating before, the Close carrier was VERY easy to use for a beginner, but I'm sure with tutorials/videos etc the JPMBB would be easy for a beginner too, its all about getting the wrap tight enough. The Boba can be used for a much longer time, well into toddler-hood, the 3G has foot stirrups, which allows it to be used for much longer than other carriers such as an Ergo etc I believe. Its also very 'man friendly', my OH won't use a wrap, although he did use the Close carrier. I find a carrier much quicker to use than a wrap, so better for popping into the shop, going for a coffee etc (I feel intimidated using a wrap in public if I have to take LO in and out of it, sometimes I can get in a bit of a mess with the length of it). I also use a ring sling a lot with DD for this purpose, so will probably try and use that a bit with the NB when it has reasonable head control. The Boba would be a very good investment I'd say, especially if OH will use it, whereas a wrap would maybe be comfier for you both around the house iyswim?
In answer to your question, I've loved having both the option of a carrier and a sling/wrap, but perhaps get one and see how much you're using it before buying the other. The Boba would probably be a bit more 'user-friendly' if you think you'll get in a muddle with a stretchy wrap. Also, look on ebay for a bargain wrap, then you could have a play and sell on if you don't get on with it, I doubt you'll find a Boba on ebay though.
The best thing to do would be to try and go somewhere that you could try a few out. I've ordered from Love To Be Natural and Maverick Baby before, so try them for advice perhaps, alternatively, see if there is a local Sling Meet near you (just google), and then people will bring along some for you to have a look at.
Painting - it was going well until DH put the wardrobe back. Its completely the wrong colour, I'm so cross with myself for not using a tester, this is the third time I've done this! (I've ended up repainting our entrance and a desk, you'd think by now I wouldn't be making the same mistake again!!)