Rock Automotive of Kent WA

I have a 1995 Chev Suburban with 204k miles on it! One day I was climbing the hill coming home from work and my truck started to jiggle and I pulled over as the transmission seemed to be slipping! I checked the trans fluid it was good and there was a scratching noise coming from underneath as I looked I couldn't see what it was! I put it in gear nothin as it is a 4spd auto! 1234 & reverse were like neutral oh crap just 1-1/2 miles from home I am thinking of having it towed! I turned it off and waited about 10 minutes as I was talking to my Burban saying come on baby just get me home which is crazy but sh** it worked! I turned it over put it in drive and drove home totally insane but sometimes good things happen! I googled my year make and model of my suburban and searched for a solution to my transmission problem and after reading several reviews I ended up buying two transmission solonoids a transmission filter and a replacement gasket and new transmission fluid! I generally can fix and work on cars and googling for a solution for a temporary fix rather than pulling out 2 k for a new transmission heck I'll try anything and the parts only cost me $50! Before I started my attempted temporary google solution tranny repair I walked over to Rock Auto in Kent, WA and talked to one of the mechanics and told him what I had googled a possible solution regarding my transmission slipping and that I was going to do this repair with the recommened parts. He said that I am wasting my money that it won't help one bit! Discouraged but not yet beat down I asked what he charged by the hour for servies. He said a "WHOPPING" $98HR.? But here is the thing he told me that it would be a minimum of $250 to look at it! What I feel is not fair is if u are a shop u accordinly have a hourly rate! It was my understanding that he was not interested in his hrly rate he was interested in lining his pockets! I went home and put my truck on the front ramps pulled the pan put in two tiny electronic solonoids in the valvebody which is underneath the transmission pan and replaced the dirty dirty transmission filter replaced the gasket added trans oil all under 40 minutes! I took it for a test drive everything shifted as well as that noise dissapeared and it appears to be shifting better than it did before. I now have driven it 750 miles with no slippage and I am taking it easy but it is still driving and shifting great although I will be saving up some money to replace the transmission in a few weeks because of it having 204k miles on it! The moral of this review is DON'T BELIEVE IN ROCK AUTO because he was WRONG and only interested in lining his pockets and not willing to give me any advice as to what I may do as a temporary fix. I WOULD NOT RECOMMEND TAKING YOUR CAR TO ROCK AUTO FOR REPAIR! I played being stupid knowing nothing when I actually knew a little about alot and he took advantage of that! Sorry Charlie not me not today and not tomorrow!