Thanks! But these SoundMagic PL50 costs much more than my budget (slightly more than 2x of it
around 60$ - 200 PLN)) You've probably meant the Sonorus PL50 which could be a counterfeit of it or so. Those Denons I've planned from the start (the cool-looking silver edition with japanese text on the box) and Brainwavz Beta with Comply tips are on my list (89 PLN, nearly 30$).
My whole list (maybe it will be helpful for You)
All prices in $ (assuming that 1 $ = 3 PLN, which is more-or-less same as in reality)
All available (currently) on Allegro IEMs: http://translate.google.com/translate?sl=pl&tl=en&js=n&prev=_t&hl=pl&ie=UTF-8&eotf=1&u=http%3A%2F%2Fallegro.pl%2Fsluchawki-dokanalowe-66889%3Forder%3Dd%26string%3D%26price_to%3D100%26price_enabled%3D1%26buyNew%3D1%26offerTypeBuyNow%3D1 (I've set the type to In-Ears, price from 20 to 100 PLN (~6-33 $), only new). Hope that this link would work for You. 10 pages, on first one there are some promoted offers (Like Creative EP-630 for 2-3$ - surely a counterfeits).
From polish Allegro (site similar to Ebay)
Less than 50 PLN (~16-17$)
Philips SHE-8000 - 6-7 $
Philips - SHE-3500BL - 7 $
SONY MDR-EX10 LP - ~7$
SoundMAGIC ES10 - ~7$
KOSS KEB 24 - ~13$
Ministry Of Sound Exspect EX078-SB - 15$
JLab JBuds - ~16$
50-75 PLN (17-25$)
MEElectronics MEE M2 - 18$
MEElectronics MEE RX12 - 18$
KOSS The Plug - ~20$
Philips SHE-8500 - ~20$
Koss Pathfinder - ~21$
Cresyn AXE C415E - 23$
Soundmagic PL12 - 23$
MEElectronics MEE RX11 - 23$
Soundmagic PL11 - 23$
75 PLN - 100 PLN (25-33$)
MEElectronics MEE M16 - ~26$
Sennheiser CX300 - ~26$
Sennheiser CX150 - ~29$
Brainwavz Beta Comply - 30$
AKG K321 - 30$
Superlux HD386 - 30$
JBL Roxy 250 In-Ear - ~33$
NuForce NE-600x - 33$
Soundmagic PL21 - 33$
Audio-Technica ATH-CKF303 - 33$
From various shops:
JLab JBuds J2 - ~26$
MEElectronics M9 - 30$
Audiomagic Titicaca - 33$
Cresyn C260E - ~13$
Cresyn LMX-E630DL - 15$
SoundMagic PL20 - ~26$
Jays a-Jays One - 33$
Cresyn C520E - 33$
And as for music that I like, maybe it will be helpful if I post links to Youtube with tracks / albums. Because people think that electronic music is just techno / trance / dubstep / drum & bass.
https://www.youtube.com/watch?v=WBGJEDx13Kc (Tangerine Dream, Phaedra, 1974)
https://www.youtube.com/watch?v=VOVtxExHCPM (Tangerine Dream, Ricochet, 1975)
https://www.youtube.com/watch?v=bnvd6-EBiVs (Tangerine Dream, Stratosfear, 1976)
https://www.youtube.com/watch?v=Hie8kXocnbg (Tangerine Dream, Logos Live, 1982)
https://www.youtube.com/watch?v=9LOZbdsuWSg (Tangerine Dream, Hyperborea, 1983)
https://www.youtube.com/watch?v=9PveVrCzvXA (Tangerine Dream, Lily On The Beach - single track 1990, re-recorded version from 2002)
https://www.youtube.com/watch?v=Pt1qIM1vjVQ (Tangerine Dream, Melrose, 1990 - single track)
https://www.youtube.com/watch?v=jyY7chUsArU (Tangerine Dream, Rockoon, 1992)
https://www.youtube.com/watch?v=S9dE2Q3hPXM (Tangerine Dream, Comet's Figure Head, 1999 - single track)
https://www.youtube.com/watch?v=DesVKXp0o1c (Tangerine Dream, Rubycon 2010, a re-recording of extract of 1975 classic)
https://www.youtube.com/watch?v=ykNxgmIzndo (Tangerine Dream, Calymba Caly (Figaro's Fine Cut), a 2012 re-recording of a tune played live during 1980-1981 shows)
https://www.youtube.com/watch?v=K7CEZgAe7_o (Klaus Schulze, Cyborg, 1972, with 2007 bonus tracks)
https://www.youtube.com/watch?v=SytVmRc67T8 (Klaus Schulze, Moondawn, 1976, with 2005 bonus track)
https://www.youtube.com/watch?v=CQyA43lzIMk (Klaus Schulze, Dig It, 1980)
https://www.youtube.com/watch?v=Jh6oiAKK2fA (Klaus Schulze, Brave Old Sequence, 1991 - single track)
https://www.youtube.com/watch?v=_81-3w8akYs (Klaus Schulze, Kontinuum, 2007)
https://www.youtube.com/watch?v=7-8g8hKJEwQ (Klaus Schulze, Shadowlands CD 1 (the regular album edition), 2013)
http://www.youtube.com/watch?v=ppUJheV6xhQ (Radio Massacre International, A Bridge Too Far (Live), 1997)
http://www.youtube.com/watch?v=6tFUffnifZE (Radio Massacre International, Fast Forward, 2007)
Maybe it will be helpful. Some of tracks / albums form my favourite artists. A lot of listening.