Oh but a market it serves young padawan. We didn't get here without one!
Luckily Bitcoin holders in general are a stubborn bunch who recognize the benefits of delayed gratification and do not consider Bitcoin as another tool to facilitate mainstream consumerism. They are not much concerned by transaction throughput as they understand the value of scarcity and exclusivity. Real Bitcoiners are intelligent enough to anticipate the healthy ecosystem that shall be built on top of Bitcoin and enable their frivolous spending. Of course none of them would be foolish enough to part ways with their Bitcoin at this stage of the game. This is a marathon, not a run!
All of this to say that you will be hard pressed to convince the economic majority that there is a pressing need to accomodate more transactions of the blockchain because as they look around their peers and other economically-able relatives all they see is dormant bitcoins resting in cold storage and apparently not close to get out of hibernation.
Just read this
http://www.contravex.com/2014/02/25/matters-of-bitcoin-merchant-adoption/ and this
http://www.truthcoin.info/blog/measuring-decentralization/ until your head hurt and maybe, one day, the force shall also awaken inside you!
Transaction throughput should not be a feature of scarcity, this makes no economic sense to attach such a concept to transaction throughput. Bitcoin is indeed the Devils way to teach geeks economics. Scarcity in the Bitcoin supply is very important, scarcity in transaction throughput on the other hand has no economic advantages only disadvantages. It decreases the utility of Bitcoin. You keep repeating the false dichotomy of payment system vs store of value, what you fail to grasp is that these two features of Bitcoin actually reinforce each other in a synergistic fashion. It does not need to be a choice between these two concepts since Bitcoin can do both. Being a better payment system gives Bitcoin more utility which in turn makes it a better store of value, and being a better store of value in turn also makes it a better payment system. You also say that Bitcoin is meant to be exclusive, I wholeheartedly disagree, it should be inclusive instead, this has always been a part of the original Bitcoin ethos.