How much do you enjoy navigation by gps?
What features do you feel you must have (you mention blue-tooth so that's one to narrow the field with) and so on-
Contrary to you- I prefer peace and quiet on the bike and wear earplugs. I have no need for integration with bluetooth/autocom etc. Because of this I chose a marine gps (which also can go into automotive mode) - Garmin's 278C handlebar mounted and the handheld 60CSX (carried) as they give me the screen size/redundancy/options/menu & display customisations/track memory/custom POI's/facilities/etc. etc. that I need-
It really depends what your personal needs are, how important these are to you and your budget- Forget the marketing hypes- I made a list of the functions I needed and went from there - that will drive the 'which unit' decision.
I did have the 276C before and it was fine but that unit did not allow Custom POI's nor did it have an internal memory for maps- The max is 3000 POi's including the route ones and that was not enough for me after awhile- I've now loaded up over 325,000 of them on the 278C and still have kept the unit's 3000 vacant! The 278C also has the whole of the EU pre-loaded and has the same bespoke Garmin removeable memory cartridges which are expensive and a max of 512MB (my only wish would have been for it to have micro SD instead- but you can't have it all!) I chose that unit as it also made use of the same mount as the 276- another factor-
I also previously had the 60CS but that did not have enough internal memory nor the ability to send the tracks direct to the the micro SD slot that the 60CSx
has - so I upgraded-
offers a unit comparison option which is quite handy.
So as to " The question is whether it's actually worth the money" - Only you can decide on how much to spend in the end and what works for you. I have no regrets with my units - they give me what I need -