At first Masterpiece looked dull, but the card is really growing on me (I have not tried it yet). Silvers for $1 a piece sounds like a great deal a lot of the time, and I would guess that its presence pushes you towards BM, plus draw? Probably $5, overpaying by $2, is least I would pay for it, achieving the same money density for the same cost as Cache. Also, having another kingdom Treasure at $3 is nice, even though you won't pay $3 for it... and it's a good target for Mine etc. and Swindler. I like it, it's a nice design.