Dunno where you've all been shopping, but all the CFL's I've bought (since about a year after they first appeared in mainstream shops, the ones before that were crap, but we're going back - what? A decade?) turn on instantly, light up the room, and don't fail any more/less than filament bulbs.
They fit in the same sockets and if you check properly, you can get the same bulb shapes too. About the only "weird" thing I've noticed is that some of them "glow" faintly for a few seconds after power-off (most noticeable in bedroom lights, for instance, which tend to plunge you into absolute darkness that you can't miss - because you're looking up - when they go off).
The CFL's are in the pound-shop stock, even at IKEA still. Can't believe they are subsidised much given that they are that cheap Europe-wide and online too. IKEA now has LED bulbs for a pound or two each, in a dozen styles and shapes (never used high-power LED's, so can't comment). Dimmable, some of them, just read the box first or search on Amazon. Just about everything you want.
If you're illuminating rooms, attics, cupboards, interiors of houses, they are absolutely fine. Outside lights are either incandescents (and are therefore used for general illumination, not safety like a light to show that someone is in, hence CFL's are appropriate) or halogen-style floodlights for safety anyway.
Guess what? I put two cheap Â£2 bulbs into my rear garden lamps and they light up to ten feet away adequately in pitch-black for the whole width of my house. You can go to the bottom of a 30 foot garden by them and not trip over anyway, and yet with them off I can photograph Jupiter and Saturn through a telescope on a clear night with no moon without any special preparations.
And, you know what?, I've paid more than Â£2 for incandescents a LOT in the past. They haven't been as cheap as people claim they were for a LONG time and that has more to do with inflation than the technology being phased out.
Again, people whining just because you take something away. I bet you could have found a million people who thought a candle "gave off better light" than these new-fangled incandescent bulbs that came along, if you were around a hundred years ago too.
In fact, I've been in my current house for 18 months. The ONLY bulbs I've changed in that time? The stupid 20W halogen G9 / G4 mini-bulbs that there are 12 of in my living room in two light fittings (and with 12 they are barely equivalent to 6 CFL's doing the same job). We have to replace those bloody light fittings soon as they are too expensive to run and just blow *all* the time.
Everything else are CFL bulbs that *I* personally bought as cheap as possible and put into my new house, or CFL's in things that we have brought with us from our previous house (4 years there, only CFL's bought when brand-new, again the only things I changed in that house were 12V "low voltage" halogens). I think there's a pound-shop mains-powered LED thing in the shed, but that's quite new.
Sorry, but I just don't get what shit you people are buying to have these bad experiences with CFL's. Cheap crap out of Ikea, stuff out of Homebase, stuff found on Amazon, stuff bought from pound-stores (or Trago Mills, if you're familiar with Cornish cheapie-shops and their 63p CFL bulbs), I've bought them all. The worst that happens is you get a slow-start brand but it's been a long time since I got lumbered with one.
Honestly, it's a load of bollocks. The only traditional incandescents in my house are in the electricity cupboard and the loft, and that's because I'm too cheap to even put a proper light fitting in there (currently a 50p lampholder plugged directly into the lighting circuit for both), let alone change the bulb, I use it so little. And the area they have to cover? The cupboard would be fully illuminated by a small 1.5v torch bulb, and the attic I actually have to bring table-lamps (with CFL's!) into to see when I'm working in there because the incandescent just doesn't cast enough ambient light to see behind all the boxes and crap up there.
Seriously, put aside your prejudices and bollocks and replace at least your crappy, horrible, pointless bulbs that don't matter with a CFL next time they blow. Chances are you won't even notice the difference six months from now (I know I just had to GO AND CHECK what's in my outside lamps even though I put the bulbs in them in the first place!).