$400/sheet is a decent price but surely that's only because it's quantity. i highly doubt you could go out and get 10 hits for $40. the price of LSD has significantly gone up and i think that a lot of people wouldn't be complaining if A) what they were sold was in fact LSD and B) the quality was consistent.
this summer i came across white on white, unperf blotter and it was NOT LSD. i paid a ridiculous amount of money for it because i was told it was quality LSD when in fact it wasn't. i spent the entire night puking my guts out and in physical pain (off 1 hit mind you) and didn't get to sleep until roughly 15 hours after i dosed and even then, i was still "tripping." i was in hell that night and it sucked.
i came across more blotter a month later and this was good, quality LSD so i didn't mind paying as much as i did. i too wish the days of $5 hits were still around but it seems that since demand is so high and supply is fairly low, those in possession of the LSD can control the market.
LSD is overpriced and i'm sure less people would be complaining if the quality of the LSD was worth it. if i find LSD that is the best i've ever tried, i'm not going to complain about paying $10/hit for it. however, if i come across LSD that requires 3-4 hits for a good trip, $10/hit is a bit expensive for me, personally.