Back when i first got interested a simple plossl was 30 pounds and that was around 1997 still have it to this day to remind me, and could not afford a telescope so I made a Dob with the help from local astro group 8" f5 the primary pyrex cost 50 pounds for the blanks then grit, Luckily the club sourced via me a silvering vacuum chamber pump (ex colleague of my Dad) as they made electron microscopes and mass specs. The secondary came via OO and that again was another 50 pounds then the hardware spider and cell mount again from OO simple plywood and plastic drainage tube. So back then telescope Making was at the forfront as affordable as buying off the peg so to speak also you had ATM bulletin board on t'internet back in the day with Mel Bartell's if any of you remember. So i think that today's pricing is somewhat affordable as back then whey out of my league.