Yes, the 250 lumen olight will be noticeably brighter than an 80 lumen surefire. There are MANY options for lights below 100 dollars that have been confirmed to put out more than 200 lumens out the front. Surefire underestimates the output of some of their lights, but they still are pretty expensive for the amount of light they output. Most people do not buy them for their stock brightness. If you just want a very bright light, what you first need to decide is what batteries you want to use. The high output lights will use rechargeable lithium ion batteries, or CR123 lithiums (non rechargeable). You will need to determine which of these you would prefer.
There are many lights that use each type of battery. Surefires use basically exclusively CR123's in stock form.
Many of the new LED lights use a CREE LED (either a Q5 or R2 bin; the R2 is slightly better). The olight uses an R2, but there are many other lights with similar output that use R2's and Q5's.
You may want to take a look at this thread, which compares the actual lumen output of a lot of different lights:
http://www.candlepowerforums.com/vb/showthread.php?t=229135
Lumens are not everything though. Depending on the range you want to us the light at, you should get a light with more "throw" (more focused), or less throw with a beam more like a flood light. There are many different lights in between pure throw and pure flood.
Some manufacturers of high quality lights with good values that you might want to look at are, in no particular order: Fenix, Jetbeam, Eagletac, Olight, iTP, Dereelight, Wolf eyes, and many, many others. Not all high output LED lights use CREE LEDs either.
Is there a specific use that you want to use a light for, or is it more for fun (or whatever excuse you can come up with...)?