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There are many cheaper systems which come close to the L285.
> Am I missing something or could I change to EL2 without any problems?
That depends on what you want to do with it.
The main use for the L285 these days is building and repairing aircraft, and a few other uses where the price difference doesn't matter much or where rules and laws require certain approved resins. Nobody in their right mind would use it to build a boat or something similar, like a thick and heavy mould where huge amounts are required and cheaper resins will do.
Imagine you perform a structural repair somebody else's aircraft. Depending on your local legislation you will be in deep s*** if 1. you aren't allowed and qualified to perform such repairs and 2. you used a resin which isn't approved for repairs, and you tried saving 5 bucks by using another cheaper resin. Apparently that depends on where you live, in the US it seems to be perfectly fine to even use West System without post curing to build aircraft...
You always need to keep the cost of the whole project in mind. If you have several hundred $/€ of expensive non-standard carbon in your part and many man-hours of work, paying a little more for a good and proven resin doesn't make a lot of difference. There is no doubt that the L285 is a great resin to work with. It might still be cheaper to buy it in bulk and use it for everything than buying several different, cheaper resins in smaller amounts.
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