You spent that much money on S30v? If it were m390 s90v or cpm20cv I could see it but I refuse to pay even $150 for s30v.
Why would a knife in S90V cost any meaningful amount more than a knife in S30V, Unless you are using a very expensive or difficult steel then price hikes relating to blade steel are mostly not simply reflecting the specific steel used. I see people saying this quite a lot, "A knife in X steel is not worth X price" The only tiny difference between S30V and S90V is that grinding a hard blade would put slightly more wear on a belt, but it's not like S30V is that easy on a belt either, it's actually quite difficult to polish S30V.
S90V bulk bar stock is not really that different in price to S30V. You can pick up cheap S90V knives, even when it's imported from America to Europe, I can get a knife in S90V made in Europe for £60. A lot more goes into pricing a knife than simply what steel it uses.
A custom knife made to the highest level of fit and finish could be using 440C or 154CM and still cost 4 times the price of a knife in S90V. M390 is not an expensive steel, it's used by lots of makers in Italy in very cheap knives. A knife in M390 can be much lower quality than a knife in S30V, you aren't paying for steel, you're paying for the overall cost to produce the entire finished product. You also do not pay for steel performance, a lot of people seem to think if the steel performs better it costs more, which is not true, there are steels that hold an edge way worse than D2 and cost twice as much to buy in bar stock. Knife steel isn't priced in accordance to knife edge retention performance.
For example, a Sebenza in S35VN costs 450, you aren't paying for the steel, you're paying for the entire knife and everything that went into making it. It's like saying the Sebenza isn't worth 450 because it's using S35VN, the Sebenza could be using ATS34 and it would still be worth 450.