lol I'm the last person to track my car and I would never just get springs. They don't go low are non adjustable and at some point you have to replace the stock shocks.
I always go coils, they cost more but perform better, can be adjusted if one chooses and go lower. BC racing or H&R street coils have been the more popular set ups. I chose H&R this time around.
That's great if you decide to go with coilovers, I have in the past also. What you have to understand is not everybody wants to shell out $1000+ on adjustable suspension just to get a drop. If you only want to eliminate wheel gap it just doesn't make sense to spend that kind of money, not to mention if you are just eliminating wheel gap you'll most likely set your height and forget about it unless you plan on tracking regularly. I sold a friend my lowering springs from my last car and his stock struts are still riding like new; it's been 6 years.
As I'm assuming most cars here are DD's, some people live in cold environments where salt and sub-zero temps are an issue. Coilovers can seize and start clunking in colder temperatures. Once that happens, do the benefits of coilovers apply anymore? Most likely not. If something goes wrong with one corner of your coilovers, it's probably more expensive to order a new assembly for that corner vs a single strut.
I've had tokico struts + H&R sport springs on older cars and that rode great. Definitely more comortable than the coilovers on my last car.
Not trying to say coilovers are a terrible idea, just saying there are other ways of eliminating wheel gap that are probably a better long term investment.