In general, what motivate us about bitcoin is the money it will make in the future after consistent accumulation of bitcoin. Because if there is no money involved, but only technology itself, people will not be rushing into bitcoin. They will be happy knowing bitcoin, but they will not be as highly motivated and driven like they are today.
Personally, I get inspired knowing I have bitcoin in my wallet, and believe that this single amount of bitcoin once multiplied and become double or triple, will create a big difference in my future finances. Bitcoin will make people rich, but in different time and level.
You are right. People will not be so motivated with bitcoin if its all about having technology alone, but when bitcoin becomes a profitable tool for investment, that's when people turn into highly aggressive with bitcoin. Money is everyone's ultimate goal, and investing in bitcoin means making money in the long run, and that's how we get too motivated with bitcoin.
Aside from decentralization, bitcoin as a promising investment motivates me the most.