I love the silver standard. The biggest reason why I love it is it cuts down the complexity of the monetary system by 25%. Every system I've personally seen that uses the gold standard has the same 4 denominations: copper, silver, gold, and platinum (with electrum thrown in for fun in some systems). The only purpose Platinum serves in those systems is cut down on the number of coins carried, because players end up with such vast quantities of gold and silver. In the silver standard system, you only need three denominations, because silver is the baseline, and you can upgrade to gold to keep the quantity of coins down.
Also, it also makes any appearance of gold (jewelry, tableware, etc) that much more special. For example, imagine the party just found a golden platter in a dungeon, and lets say that the platter is made of about the same amount of gold as it would take to make 25 gold coins. Depending on the quality of craftsmanship that went into making the platter, it's probably worth 25-50 gold coins (assuming no decorative gems). If you're using a gold standard system, that platter represents approximately one quarter to one half of the average starting wealth of a player character (in some systems, like Pathfinder, certain classes can start with as much as 300 gold). Some players might not even bother carrying that back to town, especially a few levels in.
But in LotFP's silver standard, that exact same platter is worth 7-14 times as much as the MAXIMUM starting wealth of a player character (1250-2500 silver). Even at higher levels, that would be worth carrying back to town, IMHO.
And finally, the other thing the silver standard does is make copper coins relevant again. When was the last time you played in a gold standard system and actually cared about copper? (treasures containing 5000+ copper coins don't count, cause those are just silly to begin with) In the silver standard system, it's actually worth carrying around a couple dozen copper coins, since most common-folk and beggars likely deal in copper almost exclusively anyways. In my experience it's rare to see even lower level players in gold standard games bother recording copper on their sheets. Often not even silver!