Didn't sell it but I regret that our copy of Sunset Riders from back in the day ended up with my brother's stuff (even though we originally got the game from my friend). Now it's an expensive game for some reason.
For some reason expensive 
It's a run and gun game, many people collect for this specific genre and not to many of such games around, old school cowboy western again not many of such old school good cowboy games around, Snes version is a solid arcade port.
Gameplay and grapics are excellent and defenitely not as common as most good games, furthermore more people now know about this great game. It's not really a suprise in my opinion. The only reason why it was cheap in the past is because for allot of people the game was not known.
Ps2 and ps1 still have allot of hidden gems wich are cheap, so if only people would stop creating those hidden gem video's prices will stay low for those uncommon excellent yet still cheap games. Not talking about hidden gems on forums would also help since I have seen many games rise in price thanks to only that for ps1 and ps2 consoles.
Being a good game doesn't necessarily mean it will become expensive, as in $100 expensive. Like for example, look how expensive Earthbound is. It must be the best game on the SNES right? Not exactly. Well, it must be really rare then? Nope. It's just expensive because.... reasons.
It's not a common game, your lucky if you come across one in a lot in Europe or the US. That in combination with it being a great game and it being known by many people make a game expensive.
It's harder to find than copies of dK country 1 to 3 super mario kart and many other great games and not even by a little but by allot.
Super mario world might be one of the better games yet you will easily find one in pretty much every lot. There are far more super mario world carts to supply the demand wich keep the prices normal, yet if a sunset riders cart appear many people are looking for one while there are few. Less carts to supply demand.
Hard to find and in demand, A game does not need to be very rare to become expensive It's already hard to find as it is. There are only very few games wich are rare, and many games wich are not rare can be hard to find. and than you have cib stuff wich is even less supply.
Earthbound is not easy to find. If it truly wasn't hard to find just uncommon? I'd like to ask if you have found one or many copies in the wild already?
Panzer dragoon saga in The US 500+ $ pretty rare yet so many on ebay why?
The only reason why you see many copies of earthbound or other expensive games are online is because it is valuable people want to sell it or need to get rid of it, if it was worth far less, allot less people would bother to try to sell and scalp them. the only reason why one sees so many copies people hoard them copies there is allot of demand and the games are not easy to find from new sources.
Supply demand, and how great a game is affects prices. Sunsetriders is far harder to find than many other great snes games It's no suprise why it is more expensive than most games.
Expensive games have a higher chance to get back in circulation, People need money in hard times and sell them to resellers or just on the open market.
Also in my opinion sunset riders is one of the best games on the snes. Definitely in the top 20 games for Snes. I cannot imagine this game not being in the top tier games for snes.
