But like Jimmy says, if you are seeking a boutique pedal as a collector's item or as a supplement for practicing and talent (not YOU, but the proverbial "you" readers) then just avoid them at all costs. Your wallet and your talent will be better off.
Listen, if you can't make the track special with hand technique and inspired writing then you are fucking it up. Effects are the icing on the cake, but first pretend its not nyone's birthday and let 'er rip old school. I love the crazy sounds Geoff Emmerrick cooked up with the fab4, or that Holdsworth and Floyd pioneered on Dark Side, but that music holds up on acoustic and piano. Examine your motives and only then will I grant you a 'caveat emprtor' in reference to your over-the-top paper weight.
Remember this, few of you have owned more effects than I have. And when it comes to universal classics? Probably NONE OF YOU. I once possessed every tone bender but a mk 1, 2 fuzz faces (60s and 70s), 2 Maestro fuzzes (FZ1 and FZ1a), boutique versions of some of these classics, a univox superfuzz, a modern take on the FF I designed and made (still own it), a coloround overdriver, an original Boss SD1 (might still have that in storage), original tubescreamers? 2 TS9s, 2 TS5s, a turbo and a TS808! A Roland Echo-Chorus from the early 80s, an ecoplex EP3, an old WEM copicat tape delay, the venerable Yamaha SPX90, multiple Alesis units, a Lexicon Alex, TC G major 1 and G sharp, an original DM1 and DM2 by boss, an Ibanez AD-80, a Boss CE-3, a Boss purple flanger from the 80s (BF2?), a rare Mu-Tron 'foot' flanger, a second series EHX small stone from the 70s and the late 80s green Russian version, fulltone fulldrive 1 and 2, 2 OCDs, a couple early zvex and catalinbread boxes, DOD OD250s and an MXR Dist+from the 70s, vintage script-logo dynacomp, rangemaster clones, a Brian May touring booster, DOD bifet preamp, and just in the muff camp I have had a Ram's Head, Skreddy mayo, early black Russian, green Russian, BYOC large beaver, 80s IC powered version.... probably more! Tip of the iceburg. Rarely used any of it, even in the studio. Want a standout studio tone? Slam your guitar into an old Telefunken or Neve pre, then take the direct out of that preamp into another channel on the board, EQ to taste and HAVE AT IT!