From 2006-2013, I've visited Neptune Cyclery 5x, when I visit Florida from Minnesota to ride the Pinellas Trail. Â I've been to 3 bike shops on the Pinellas Trail (one in Dunedin, one in St. Pete's, and Neptune Cyclery in Tarpon Springs), and about 30 bike shops around the country, and I have concluded that Neptune Cyclery is the best of the 3 I've visited in Florida, and one of the best I've EVER visited for the following reasons:
1. Â FAIR PRICING. Â The owner won't overcharge you for rentals and repairs, and sometimes won't even charge you full price, which is amazing for a tourist town. Â
2. Â NO UPSELLING. The owner, being a serious cyclist himself, is more interested in getting YOU on the road than in having you hang around the store while he upsells you stuff.
3. Â EXPERT OWNER. Â The owner knows not JUST about fancy new racing $1500 bikes, but about $160 racing vintage bikes (RB1s, Nishikis, Bianci Bravas, OLD Schwinns and Treks, etc.)
4. Â FEMINIST OWNER. Â The owner never talks down to me, as I have found many bike mechanics do--especially to female cyclists (he has never "mansplained" to me what a gear is). Â Hallelujah! Â
5. Â GOOD RENTAL FLEET. Â Instead of squirreling away their best bikes to sell and renting out only their most indestructible (read: clunkiest) touring bikes, Neptune Cycling will rent you newish, high-end racing bikes (if you want them--you can also get a more touring-type bike with upright bars with wider tires, if that's what you're into). Â
To elaborate...
   During this visit, I kept one his rental bikes for 3 days and 2 nights.  He charged me for 1 day.... for a $1500 Giant fancy new racing bike.  When he repairs the bike I own, he never quotes/charges me more than my bike mechanics back home do--and I really hold their feet to the fire on what a chain costs because I am not rich--and it is remarkable that he does this because he lives in a vacation town where tourists like me can expect mark-ups.  He's not there to rip you off.  Probably because only two people are working there--only one of them full time.  It's a super efficient, laid-back operation.
   Neptune Cyclery mercifully bucks the trend in bike shops that is sweeping the nation-- the "professionalization" of the bike shop.  You get these young guys there--way too many of them, like 3 or 4 in one shift--and they're not owners, but underpaid and totally exploited mechanics--and they work full-time there.  And although on the one hand I sympathize with their exploitation, they talk down to customers a lot (especially women :( I've found) and the turnover is super high--such that customers like me usually can't build a relationship with a mechanic once we find one we can trust.
  Like the rest of the world, bike shops have gone all corporate, for the worse.  They upsell you everything--electric bikes, recliners, stuff you don't need.  Repairs are outrageously expensive.  So when Neptune Cyclery opens 5 minutes later or closes 5 minutes earlier than the sign says, and there's only two old dudes in there, and it's dimly lit, the big wooden doors are a little forbidding, and they never jump to offer me extra stuff to rent or buy, and the owner never wears a shirt, I THANK GOD there is still ONE BIKE SHOP LEFT in AMERICA that still has bike culture in it: it's laid back; the owner wants to talk to you about RIDING.  That NEVER happens anymore! Man, I miss those days.  The owner always seems like he either just came back from a ride, or can't wait to get back out there for one.  That's the way it SHOULD be.  His mechanic is part-time; the operation is efficient.  Nobody wears matching tee-shirts with dumb logos on them.  There are no signs spelling out menus of tune-up prices that are 20% higher than they should be.  Neptune Cyclery is about the joy of riding.  It's about comradery.  It's not about selling you stuff.  When I'm in Neptune Cyclery, I want to RIDE, and it gets me everything I need to do that.